It's bound to be interesting now that Bill Gates has gone back to work at MS as a technical advisor in the programming department. No doubt he's hoping to make sure Windows 9 has every hope of being as successful as past popular Windows itterations.
Already read an article about three or four weeks ago where a lead programmer at MS was interviewed and disclosed that Windows 8 was a massive mistake and that 9 was going to return to the tried and true interface as the default. He then hinted that there would be Metro-style interface that would be there, but the user would have to choose via a setting if they wanted it to activate it or not.
Also coming, not only to Windows 9, but also allegedly this year to Windows 8 SP2 will be a physical release of 64-bit for ARM based systems. This makes perfect sense since Apple is foolishly attempting to prevent Windows from being installed on upcoming Macintoshes by going to proprietary ARM-based CPU's.