Graphics
Quantity and level of content for 7.X patches
Housing and character creation
Jobs/gameplay

For example I highly believe jobs are going to stay relatively the same as they have been since SHB. This may be a focus on 8.X probably if at all in terms of big reworks, their focus is elsewhere. And TBH Graphics does need the highest prio if they're going to keep this alive for another 10. It just won't compete otherwise.