With The Last of Us PS4 now officially revealed Naughty Dog has been talking about it some more.
They revealed that development began immediately after the PS3 version was finished:
“We had a lot of people on the forums saying ‘can I play this on PlayStation 4?’ We had actually been anticipating that, and started working on it pretty much as soon as we finished the PlayStation 3 [version]," he explained. "We weren’t sure if it was going to go anywhere, but when we saw the fans clamouring for it we doubled-down, and put more effort behind it. "
The game should also look fantastic with full 1080p HD video and much more:
"The graphic fidelity has been turned up to eleven. We’ve got 1080p, we’re pushing the draw distances further, we’re creating higher resolution character models, better lighting, better shadows.”