I've been tracking these in several different places, but I figure some folks might be helped if they're looking for Pro to something that they do in Arc, and stumble across this. Comments turned off, the best feedback you can provide in response to this is a good use case in any of the ideas below that you vote on. If you think an Arc Map Equivalency Idea should be on this list, PM me. Bookmark, as I'll update this pretty often. Some of these are in Product Plan, but you may have additional user requirements that are relevant to be added to the idea before they build it.
Pro: Add the Profile Graph Tool as it works in ArcMap (Profile Graph for Non-Elevation Data: May be dispute that this is fully implemented....)
Pro: GP Inputs should display full path to sources (as does Arc)
Pro: Add the Magnetic Calculator tool
Pro: Arc Hydro Tools should be listed in logical order: Bring back the toolbar!
Pro: Allow importing schema from non GDB items....Like Arc.....
Pro: Add Calculate Cache Size to sharing dialogue
Pro: Attachments should display in Pop Up as in Arc
Fix this Pro Bug: Import XML is missing schema preview
Pro: Arrange Tables Functionality (Like Arc)
Pro: Create 3D points along a 3D line
Pro: Change Data Source for XY Event Layer should present geometry options (Like Arc)
Show tiled service layer legend in Pro
Getting “clear” option of the coordinate system available in ArcGIS Pro,
ArcGIS Pro: Allow connection to .sde files in folders
Show printer margins in ArcGIS Pro map layout
Scale Legend Contents Automatically with change in size
"Copy Map to Clipboard" in ArcGIS Pro?
Stop the ArcGIS Pro table view jumping around when I calculate attributes
See Fields while Scrolling Through Attribute Table in ArcPro
Microsoft Access (.accdb) Support in ArcGIS Pro
Enable ArcGIS Pro to access ESRI Personal Geodatabases
Only Display These Scales - in ArcGIS Pro
Add 'Freeze attribute column' to ArcPro
ArcGIS Pro - Export to Illustrator
Auto hide attribute table in ArcGIS Pro
Graphics and free text in ArcGIS-Pro maps!
Enable ArcGIS Pro to Save Without Creating a File Geodatabase
ArcGIS Pro - Creating Project Templates without Default File Geodatabase
Add basic find functionality to ArcGIS Pro table view!
Hyperlink Field / Support in ArcGIS Pro
Stop having ArcGIS Pro automatically sort attribute domains when editing
Ability to query text field in Pro as with ArcMap
Be able to see an entire cell in Pro attribute tables. Equivalent to ArcMap.
Cul-de-sac tool for ArcGIS Pro
Need Ability to Replace Data Source for Multiple Layers
Bring to Front / Send to Back for Layouts in Pro
Implement right-click menu single-key accelerators in ArcGIS Pro
Add "Custom Overlay Grid" to the Layout options for Grids/Graticules in ArcGIS Pro
Reclassify Rasters in ArcGIS Pro
Cut Polygon Tool for Pro. Equivalent to ArcMap.
Improve Profile Graph in ArcPro - flash point on line
ArcGIS Pro: Add universal copy & paste like in ArcGIS Desktop Catalog & Map
Catalog View in ArcGIS Pro Identify Tool
Allow Layout Gallery of ArcGIS Pro to have custom page sizes added to it
Resize scale bar in ArcGIS Pro
Add the 'Move to end of table' button in Pro
In ArcGIS PRO allow formal edit sessions for unversioned data in an enterprise GDB
ArcGIS Pro: Option to Enable Dockable Toolbars and Menus
Add Select by Attributes Tool to Attribute Table in ArcGIS Pro
Find - Linear Referencing Tool for ArcGIS Pro
Let us create an alias for connected folders in ArcGIS Pro
Add full COGO functionality to ArcGIS Pro
Sort / Order Datasets in ArcGIS Pro Catalog Pane
Add Map to KML/KMZ in ArcGIS Pro
ArcGIS Pro - Add support for geometric overrides
ArcGIS Pro: symbology for selected polygons
Sort Parameters in Geodatabase Administration Screen in Pro
Geodatabase Administration Window in Pro Should be an Independent/Dockable Window
Having built-in polygon outline styles in ArcGIS Pro
Enhanced Magnifier window for ArcGIS Pro
ArcGIS Pro: Add Multi - field Batch Geoprocessing ability such as in ArcGIS Desktop
Allow ArcGIS Pro Catalog Panel to delete CSV/TXT/XML files
Allow ArcGIS Pro Catalog Panel to delete MXD's
Add a "Change Layout" Button for ArcGIS Pro
Add 'Freeze attribute column' to ArcPro
Added Aug 22, 2019:
Have ArcPro's Layer to KML behave like the ArcMap Layer to KML
Aug 23, 2019
Pro: Holes in Polygons (like Arc)
Bring back ArcMap style Move and Rotate tools for annotation in Pro.
Bring back full arcpy.GetMessages() messages in ArcGIS Pro!
Toggle Draft Mode in ArcGIS Pro
ArcGIS Pro Topology - Inspector fix multiple
Edit vs. selection cursors in Pro
Place Export to CAD outputs in ArcGIS Pro into a single group in the TOC
Create Steepest Path tool missing in ArcGIS Pro
Custom Dimension Feature Class Properties in ArcGIS Pro
Bring Edit Button from Desktop to Pro
Allow Attribute Table to be Docked with Other Windows in Pro
The disappearance of the raster catalog in ArcGIS Pro
Insert of Office Objects (word-documents, pdf, ...) in ArcGIS Pro
Add decimal places to Degrees Minutes Seconds Display Units in ArcGIS Pro
August 27, 2019
Keep Pro table view the same when selecting rows
ArcGIS Pro support for importing and exporting traverse files
Designating Items In Legend Columns
Support for Geometric Networks in Pro
Don't Add .z Automatically When Exporting an XML Workspace
Folders in XY Coordinate System Favorites!
Caching “Suggestion” option is not available in ArcPro 2.4.1
September 8, 2019
Degrade ArcGIS Pro Annotation for ArcMap
October 1, 2019
ArcGIS Pro: Show existing joins and relates in Joins and Relates Context Menu
October 8, 2019
Need absolute path names in Pro
Add "pan to the current feature and flash it" to ArcGIS Pro.
ArcGIS PRO Cursor Identify tolerance
Add Viewfield Angle parameter and View Settings window to ArcGIS Pro (ArcMap Equivalency)
Graphic Element Edit Vertices Enhancement
ArcGIS Pro Help should start showing version numbers (e.g. 1.0-2.1.2)
Could be an Equivalency Idea? I throw a lot of ideas, would like to see other folks get some ideas going. I'll up vote them!
Make Feature Layer ArcGIS Pro - change field names
Added Aug 22, 2019
November 27, 2019
ArcGIS Pro: 2.4.2: “add user” tool is not available when right clicking the database connection,
ArcPro 2.4.2: The “enable geodatabase” tool is not available on the right click of the geodatabase,
ArcPro 2.4.1: “Delete” tool when right clicking a service is not available,
December 10, 2019
Pro: Ctrl+Click/drag to duplicate text/object
December 16, 2019
ArcGIS Pro : Apply Color scheme on selected symbols
Make Measure Tool Dialog Box Movable
ArcGIS Pro Text Edit & Alt Codes
January 7, 2020
January 9, 2020
Access All Editing Tabs When Editing Multiple Symbols
January 10, 2020
Increase scroll bar width in ArcGIS Pro
Improving Attribute Table Manipulation in PRO
PRO Save Function Equivalency with ArcMap (not sure this is a clear equivalency issue....)
Add Zoom to XY & Allow Re-positioning to be Saved
ArcGIS Pro needs Match Symbols to Style
Add back to ArcPro the ability to step through vertices when editing
Enable full ArcMap-style multi-part annotation editing capability in ArcGIS Pro
January 24, 2020
Pro Catalog: Sort by Feature Geometry (e.g. Point, Line, Poly, Table)
Add Additional Details in Catalog View in ArcGIS PRO Looks like this one's not going to be implemented)
January 28, 2020
ArcGIS Pro Overwrite Vector and Map Image Services
Multi-attribute symbology in Pro
February 6, 2020
ArcGIS Pro copy symbology from layer
February 20, 2020
Allow ArcGIS Pro Catalog pane/view to cut/copy/paste whole folders
ArcGIS Pro: 2.4.2: Why the aprx file doesn’t appear in the catalog,
February 24, 2020
Middle mouse button should always have same functionality (panning)
Overwrite ArcGIS Server Print Geoprocessing Service from Pro
ArcGIS Pro - Enable time on WMS Layer
Drawing Tablet toolbar and compatibility in Arcgis Pro
ArcGIS Pro Pop Up column width not adjustable
May 11, 2020
Bring back "Intermediate Data" Option on Modelbuilder
July 10, 2020
Improve what ArcGIS Pro Catalog View shows
March 10 2021
Catalog File Type Options in Pro
Add Overview Map to ArcGIS Pro like ArcMap has. ArcMap Equivalence
Add Page Up/Page Down/Page Left/Page Right navigation commands
Find and replace with nothing in Pro attribute table
ArcGIS Pro Topology Editing tool names and workflow are confusing in ArcGIS Pro compared to ArcMap.
Recreate Click-to-Label Function in Pro Which Exists in ArcMap
Provide a way to disconnect database connections from ArcGIS Pro
Buffer Wizard Equivalency in ArcGIS Pro
Show count of "all other values" in Symbology Pane but do not show in legend
Compare Replica Schema Geoprocessing Tool In ArcGIS Pro
Map Series view tab in Map View
Icons for custom geoprocessing tools - ArcGIS Pro
ArcGIS Pro License Error Handling
Classic Traverse Grid Option in Pro
Pause Auto-Commit During Traverse in Pro
Or, Enhancements you can attach your organization to:
Eye Dropper is in 2.7
ENH-000098015
Create an eye Dropper tool in >ArcGIS Pro
I totally love this, a ton of those links have become hidden/archived; I think it may be time for a spring cleaning as it were.
Yeah, most ideas that are hidden/archived are because they were marked Implemented before the migration to the new Esri Community platform. We didn't feel they needed to stay open since they served their purpose - they were submitted, voted on, prioritized and included in ArcGIS Pro.