No Man's Sky because Sony and many media outlets are blowing the hype up to ludicrous degrees. I think the game will be great. Unfortunately, I think people are going to have unrealistic expectations.
I would have said Witcher 3 because going open world is really hard, but they delayed it so I think they're probably ok.
The Division is another possibility because it's another pseudo MMO thing and we've all seen how underwhelming those can be.