Maybe more in the way of innovation? I mean, PS4/Vita already have essentially the same thing going on, where you can play console games on your portable unit. Switch is a bit more flashy, with a few little gimmicks, but the end result is essentially the same thing. Nintendo have made innovative mechanics the main thing that sets them apart from the competition, and Switch just doesn't innovate enough to justify the buildup they've been putting out.
Well... not quite. PS4/Vita are two separate consoles. They run different game copies, you just transfer save data from one to the other, if anything
that is the gimmick. There is no gimmick in a powerful portable console. The detachable controllers? Gimmick, but one that you can completely ignore if you so desire. And face it, nobody has ever done a combo detachable/split controller before. Just a detachable controller, yes, a number of those for phones and tablets. But not one you can use as two mini joypads.
Honestly, even if they announce specifications, and it turns out that this unit has unprecedented battery life, computing power, and screen resolution, they would still have to pair it with an exceptionally affordable purchase price before it even starts to look compelling.
A powerful tablet can run you way higher than the current estimate on the price of the Switch. It's compelling merely because it's packing the power of a gaming tablet into an affordable price range. The tablet I'm using now cost nearly a grand when it was released, and it can only
just run Skyrim. Whether or not it gets that Skyrim game, a console that small and powerful for a third of that price is quite compelling.
Aside from all that, VR seems to be the next big thing in video games, and I've not seen any mention of the Switch supporting it in any form. By the time Switch comes out it may already be viewed as obsolete technology.
VR is failing. PC VR is, at least. Console VR is only just taking off, but it severely lacks proper games. Mobile VR is the thing that's on the rise, and guess what - without its wireless controllers, the Switch is a lot like a large smartphone. Remember the rumors that Nintendo might be delaying NX because it is looking into VR options? I'm betting that's the next thing they're going to be working on.
900p (rumored) screen, more power than any smartphone, wireless single-hand akimbo controllers, instant wireless LAN, and a company known for its gleeful abuse of awesome gimmicky concepts and motion controls. Switch VR is coming, mark my words.