Oh the competition is deader than dead right now. Android still barely supports tablets as a concept and Google bowed out of hardware entirely.
The market is Apple's
I mean, the competition is basically laptops, right?
Seriously, what can they even add?
That said if they make the 6GB RAM standard on all storage sizes I might bite..
3D Touch (lol since it's apparently being killed)
OLED? Maybe? Not sure OLED could handle ProMotion well, though it's obviously got advantages when it comes to contrast ratios.
There's always adding more lenses to the rear camera, I guess.
edit: what's really weird about the extremely strong consensus that Apple is killing 3D Touch is that, while they've updated iOS 13 so you don't really need 3D Touch to perform a bunch of its functions (though peek and pop was objectively good and seems to be disappearing), those updates *also* are a great way to make 3D Touch actions way way more discoverable, thus solving what the actual UX problem with 3D Touch was to begin with