I am starting to believe we'll see the end of the Start Menu structure by Win9. This Win8.1 will make Apps more appealing and help push people from Desktop productivity into Start-Screen Apps sit-back-and-consume.
The Start Menu structure still exists, though. I think about Win9, it may be pruned off entirely, and no one can run a Windows PC without going thru Ballmer's WinStore first.
It won't be easy because Microsoft has never told its developer networks the correct information on the first few times, so I see Win8's App failings as being slightly cleaned up in Win8.1, then in Win9, a bigger move to them - perhaps even something called Multitasking might become fashionable. Back in 1995, it seems like there was a product that tried to introduce us to multitasking.
By Win10, perhaps the Apps will finally work perfectly so only paying subscribers can get their computers to start up. Who said Apple had all the cash in the world?