There really isn't too much they can do except very incremental upgrades for a few years. The screen is amazing. It's extremely fast. The graphics are perfect for a device of its size. It's sufficiently thin. I mean, yeah they could make it thinner, less weight, more storage, etc. But really... those things will only make small differences in user experience compared to the current gen. Perhaps the first iteration of haptic feedback on an Apple device will occur on the ipad?? That would certainly be a leap forward, but aside from that it seems that it will be a plateau from here for a few years.