I thought I've posted in this thread already. Apparently not.

Things I'd consider mandatory at this point:

- 1 additional companion. Our current companions are starting to feel rather old at this point, and I would actually be worried if we were to go seemingly a full year without a new one being introduced, because it will start to give off the impression that the later companions may be nowhere near as developed as the initial 5.
- 1 additional class. Same reasoning as the above.

I'd be thrilled if reactions and ready actions and stuff get implemented too, but I'd probably not expect them to be fully implemented until patch 7.