*DISCLAIMER* This is PURE speculation and nothing more.
So.. we heard for a while that Naughty Dog were targetting 60fps for Uncharted 4. Devs at Naughty Dog were cited saying that TLOU at 30fps felt 'broken' but before that we had the In-engine trailer running at 1080p (constant)60fps.
Then it came down to the demo we got at the PS Experience where it was running at 30fps, the internet cried out for the lack of 60fps but it was mostly people talking about how freaking awesome the game looked.
BUT later was confirmed that at that moment in time they had uncharted running at about 37fps, which is really good for how amazing it looks and it being a whole year out. During the discovery that it was running at 37fps Neil Druckmann stated that 60fps for Uncharted 4 is "really fucking hard" giving doubt to gamers thinking it will be 1080p 60fps at launch.
NOW fast forward to today we have Naughty Dog delaying Uncharted 4 saying that they are being really ambitious and want to release a fantastic title. Naughty Dog are great at product management they do not release broken games and they don't set release dates without meeting them and producing a solid product. Is it possible that they 'dun goofed up' with their development projections or they believe if they are given another couple of months they can make uncharted 4 60fps?
TL;DR: Naughty Dog are delaying Uncharted 4 for a couple of months to get it to 60fps. Which is what they meant when they said they were being 'ambitious'.
There's only 2 races: White and 'Political Agenda'
2 Genders: Male and 'Political Agenda'
2 Hairstyles for female characters: Long and 'Political Agenda'
2 Sexualities: Straight and 'Political Agenda'
