Assuming it'll have anything that isn't shown is just not a good move. It definitely won't have a touchscreen though. Because it's either game on the TV or on the tablet. Not both at same time. And since a TV doesn't have a touchscreen, touchscreen is out of the question.They didn't show Amiibo support and yet it will have it...
Really we'll just have to wait until Nintendo says more or someone leaks information...