W9 Probably not before 2015. And Windows RT and Windows Phone probably will get molten into one OS. Rumour says a W8.2 update will come 2014, and then close the ugly W8 chapter as early as they can.
Rumour also says that from 2017 on, at the earliest, Windows 10 will come and run completely from the cloud.
I hope they get it right with W9. That will be the last Windows version then that I'll maybe buy, winning some years time before switching off Windows over here. Never will there be a time coming when I accept to have my OS being run and launched form a cloud - any "security" then will become a completely meaningless word.