I'd like to have a more standardized controller where I won't have to purchase other versions for my fighting game needs. I don't think gimmicks can carry anymore. That's just my opinion though.
Also hope 32gb doesn't become their standard. Man, was that a major overlook.
I don't mind not having Voice Chat since I play offline/alone about 90% of the time.
More 3rd party support instead of indie titles.
Have the power to rival new gen / PC gaming in terms of graphics.
Have hand held capabilities. I'm not one for sitting at home gaming most of the time as I always love having my game on the go.
Have an option for wired remotes off the bat instead of being a separate purchase.
Cloud storage for save files without a subscription. It can be a pain taking consoles from home to home.
This ones pretty minor, but I hope the console itself won't be bulky.
