Considering what happened to the Mac Mini i think it is a safe bet that Apple is phasing out the ODD. The Mac App store as well as Lion are supporting evidence that Apple is trying to channel their customers towards downloading digital content from Apple's online stores.
Now going back to the MBP, i think the next revision will not include the ODD and it will have a new case redesign. I also think that they will move away from the standart 2.5" HDD-SSD drives replacing them with MBA style blade SSD. Doing that Apple could make the MBP much lighter (4.5lb) and thinner (0.7") put a much bigger battery and easily achieve 10+ hours of battery life. Now the 13" MBP will be gone and the 11 - 13" (dual core, integrated GFX) MBA will be the entry level offering for students and casual users, with the 15-17" (quad Core, dedicated GFX) MBP becoming the real Pro machines.
There is too much precious space inside the MBP occupied by the ODD and 2.5" HDD (SSD). Together they roughly take 50% of the space (volume) inside the MBP. Immagine the magic that Johny Ive can do with that much "free" space. Bigger battery (>10 hours), better GFX, slimmer and lighter laptop...
Now going back to the MBP, i think the next revision will not include the ODD and it will have a new case redesign. I also think that they will move away from the standart 2.5" HDD-SSD drives replacing them with MBA style blade SSD. Doing that Apple could make the MBP much lighter (4.5lb) and thinner (0.7") put a much bigger battery and easily achieve 10+ hours of battery life. Now the 13" MBP will be gone and the 11 - 13" (dual core, integrated GFX) MBA will be the entry level offering for students and casual users, with the 15-17" (quad Core, dedicated GFX) MBP becoming the real Pro machines.
There is too much precious space inside the MBP occupied by the ODD and 2.5" HDD (SSD). Together they roughly take 50% of the space (volume) inside the MBP. Immagine the magic that Johny Ive can do with that much "free" space. Bigger battery (>10 hours), better GFX, slimmer and lighter laptop...