The redesign is the MacBook
The future of Macbook Pro is to become a Macbook Air. By 2015 all Macbooks will be in that form factor. That was the grand vision all along.
I'll AOL this one. Thunderbolt gets us down to "one port to rule them all" in laptops. Apple can ship 2 laptop dongles, a TB to USB 2 port pass-through (not optional), and a TB to USB brick with an SD slot, gig E, USB ports, (possibly) Firewire, and a SuperDrive in it.
There will no longer a MacBook Pro, Air, or plastic. There is MacBook, in 11.6" to 17", all SSD. One power port, one TB port. That's it, that's all.
If they can get the Air in the right price range, and get the market to provide the needed TB adapters (SD card slot, Firewire 400/800, etc.), it's now time to kill the plasticBook. Release it as "MacBook".
If they makes the SuperDrive brick the right size, they can even make it stack below the Mac Mini, allowing it to drop the platters internally too.
Out on the limb way too far: the Pro gets replaced a cube-like box with a bunch of ThunderBolt ports coming out of it instead of PCI-Express slots. Think Mac Mini on steroids.