House md New Season Rumor

I read a rumor in some websites, but I have no confirmation of any offical website, so I'm asking here, maybe some of you know...

It's true that Tim Roth could be part of the cast in House md 8 season?? Because that would be really cool.
And I heard something about Stephen Fry too... I don't know, maybe all this is false...

Someone could tell me??

Thanks in advantage!!