My turn for prediction. There will be no DVD drive in the upcoming (I hope!) MBP revision. As with the Air, Apple has a technology replacing every use of DVDs. You think that external DVD drive Apple makes is just for the Air? No way.
Now if you removed the DVD drive, what might the resulting MBP look like? Wedge shape, like the Air. But thicker than an Air, to retain ExpressCard and other I/O. Big-ass touch pad, like the Air. But also with a touch-enabled mouse button so Bootcamp users can finally have two proper mouse buttons.
Or heck, use the space for some liquid cooling and throw a G5 in there, just to say, “There! We did it!”
OK perhaps not.
And please, now that nVidia’s CUDA GPU programming technology is on the Mac, let the MPB continue to have a CUDA-compatible graphics chip.
Really really high resolution displays? Wait for WWDC for that one.