Hi Bruce,
To be honest, we don't provide a timeframe for implementation because it's often difficult to predict. We have a running, prioritized list of enhancements that is continuously refined based on customer input from the Idea Station and other sources. That continuous refinement allows us to maintain focus on key enhancements, but it also means that any request can move up or down the list before ultimately being scheduled for a release. Additionally, once an improvement is scheduled for a release, there's no gaurantee that it won't be deferred if we feel that the quality, value or experience isn't sufficient by the time the release goes out the door.
I can tell you that the Sketch improvement that was the subject of your inquiry (FUS-15315) is currently scheduled for release in April, but understand that the schedule can change.
I hope this sheds some light on the process. Again, thank you for your requests.
Charles
Charles Haughey
Fusion 360 User Experience Architect