What a gorgeous room.
https://www.youtube.com/watch?v=UQ_Z2cC-SeU
That's really silly. I mean, it's a UE4 game.
(I know it's not done, but if you are using UE4 arbitrary resolution compatibility is something you don't have to implement -- you just shouldn't actively break it)
There's a screenshot earlier in the thread of it being in 4K, not sure why the demo is limited
edit: Derp, it was just a 4K TV, doesn't mean the game was in 4K, I'm silly.