Here's what we know: The next generation MacBook Pro is going to use Intel's Sandy Bridge with the new Core i5 and Core i7 processors. And most likely ATI graphics from AMD.
Apart from that, will the MacBook Pro lose the optical drive? Maybe.
Will it have the same flash storage that the MacBook Air just started using? Maybe.
Will Apple switch the displays from 16:10 to 16:9 panels? Maybe.
Will Apple offer a 3D display? Well, that's a definite...