I hope the 4K/30fps is a really solid lock 30fps. 1080p/60fps is ambitious and appreciated but I really think I'd rather have the image quality cleanup from the 4K supersample in a game like FFXV, going off of the graphics presentation in Duscae and Platinum. I know both are quite old builds, but I'll be sure to try everything when it comes out. If 1080/60fps is super stable, it might be alright, even in spite of the ongoing IQ issues FFXV seems to continuously present. I hope that the 4K is checkerboarded since OP says it's not native.