There could be more shortcut access to tools – most of the adjustments can be added with a keystroke, but not for a tool within an adjustment (e.g. crop). It’s something I’d like to improve in the future, but it’s trickier to get right than it might appear (I have tried in the past but my quick fixes caused other bugs).
I don’t have an ETA to share for graduated filters or other selective adjustments. Sorry – I have provided ETAs for features in the past, but since RAW Power is made by an individual developer (me), many things can throw me off track, so I no longer provide estimates or future directions.