I have my doubts that any Linux distribution will be left in about 2 years time for home desktop users:http://www.zdnet.com/blog/open-source/the-linux-desktop-is-dead-long-live-the-linux-desktop/9562http://www.neowin.net/news/windows-store-to-allow-for-open-source-apps
I guess companys like RED HAT will survive. Ubuntu to if Shuttleworth not getting tired of it.
But if the best developers not get any salary to developing for the upstream , applications, Kernel etc..the future is not so bright.
Even Android have gone their own way:http://www.internetnews.com/blog/skerner/android-set-to-return-to-the-linux-mainline.-will-it-succeed.html
I am not so sure they will get back again, but we will see.