This is mostly a user to user forum, with a few Adobe employees who post, but not on a regular basis
As such, nobody here knows Adobe's plans
Go to https://www.adobe.com/cfusion/mmform/index.cfm?name=wishform to tell Adobe what you want
To the best of my knowledge, Windows 8 RT will only be available on a tablet, and will require a complete rewrite of program code to work.
My guess is we'll never see this.