There doesn't seem to be a monitor that offers a large display (27-32"), 5K resolution, and USB-C ports with enough power to charge a 15" MacBook Pro while using it like a "Pro". The 5K UltraFine comes just short of this but I also worry about it's build quality. Other nice to haves would be 2 thunderbolt 3 inputs so you could for example use 2 displays through daisy-chaining. Maybe GSync and HDR for gamers and game developers.
