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.
Fit to margins in ArcGIS Pro
Pro: Add the Profile Graph Tool as it works in ArcMap
ArcGIS Pro: Support Metadata
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)
Pro: Set Portal Search Results to show correct number of items, allow same sort options as Arc, and mimic AGOL search results
Show tiled service layer legend in Pro
Please add the ability to adjust the pooling (number of instances) of a service shared from the share pane in ArcGIS Pro.
Add Mirror Tool 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
ArcPro: export model as image
Print Preview in Pro
"Copy Map to Clipboard" in ArcGIS Pro?
Print Preview in 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
X-Ray for ArcGIS Pro
Add 'Freeze attribute column' to ArcPro
ArcGIS Pro - Export to Illustrator
Auto hide attribute table in ArcGIS Pro
ArcGIS Pro - Eye Dropper Tool
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
ArcGIS Pro GPS Toolbar
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
Port "Identify Route Locations" and "Set From/To" Linear Referencing Tools from ArcGIS 10.x to ArcGIS Pro
Add the 'Move to end of table' button in Pro
Validate Join in ArcGIS Pro
In ArcGIS PRO allow formal edit sessions for unversioned data in an enterprise GDB
ArcGIS Pro: Option to Enable Dockable Toolbars and Menus
ArcGIS Pro: Save Project Copy
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
For ArcGIS Pro geodatabase topology: Please allow ability to "Validate" topology directly from Catalog pane in the right click menu options for topology within a feature dataset.
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
Change datasource in Pro
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
State Tree Diagram for ArcPro
Aug 23, 2019
Pro: Holes in Polygons (like Arc)
PDF to Tiff Tool In Pro
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
Add the ability to move multiple annotations in Pro without losing the anchor point for annotation leaders.
Lock labels in ArcPro
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
Manage Sql Server Express