Ok, interesting article now just came out, but I heard about this last night talking to a friend who mentioned it so I did some searching this morning. I am actually quite shocked at the claim, and would love to see it. I don't understand how it is possible, I really don't. But if it's true...just wow.
Naughty Dog is claiming that TLOU Remastered can run Native 4K on the PS4 Pro.
http://www.videogamer.com/ps4/the_last_of_us_remastered/news/the_last_of_us_remastered_can_run_at_native_4k_on_ps4_pro.html
At lower resolutions, 60 FPS. Probably looking at either 1080P or 1440P at 60 FPS, depending on the game and the developer, as always. I honestly can't see any game running lower than 1080P at 60 FPS, no excuse not to be able to achieve that. Though maybe I could think of one developer that could have problems working with a Sony product... I won't mention any names.
Yeh, I saw that like an hour after the event. My personal favorite though that I saw was a photoshop that had a Pro with lettuce and meat and cheese sticking out like a sandwich.