The reason that Mac computers are so crash and bug free is because the OS runs on hardware built by the same people. By tightly controlling the hardware, they are able to create a specialized OS, versus Windows running on everything made by man but being buggier that the average forest. The second they open up hardware, they lose stability.
So it is unlikely we will see vast GPU improvements, and more than likely not customized ports. Processor options? In reality, there are few manufactured chips availible in the current arch that are cost effective and suitible for a portable system. And all the n00bs want an ODD, us pros can get an OptiBay.
But what do I know?
airplaneman: 10 GB internet? are you insane? do you even come close to stressing a gigabit connection on a day to day basis?