I'd rather opt for the 60 fps goodness but I'm glad console players are finally getting a choice, for whatever reason whenever game graphic options were discussed for console, a good portion of console players didn't like the idea of it at all.
As has been mentioned, they state it's 3480 x 2160. That's native 4k. So unless they're lying, I don't see why not. Nioh is a great looking game but it's certainly not pushing any graphical boundaries.