During ArcGIS Pro 2.0 Beta I asked whether Clipping the Data Frame functionality from ArcMap would be coming to ArcGIS Pro so that I would be able to graphically clip layers to irregular polygons that were map sheet boundaries defined as rectangles in decimal degrees, that become non-rectangular when projected on-the-fly to MGA/UTM Zones.
Feedback at the time (with no specific version number mentioned) had me hopeful that I might see it by ArcGIS Pro 2.1. However, it still does not seem to be in the ArcGIS Pro Roadmap.
It may just be that the roadmap is too granular to show it but is there any word on which version may have this functionality?
The ArcGIS Idea for this says that it is In Product Plan.