They need to show more gameplay before I consider buying this. Having read an "about this game," I am a little more clear on its purpose, but the trailer shown at E3 did not particularly look fun. I think it would be enjoyable for people maybe an hour into an game on how finding new planets and new animals, but since its randomly generated, how unique will it be? The concept is interesting and if they can get this right, they will be the first studio ever to do so, at least in my knowledge. The space fighting looks bad and boring to me, and reminds me of Ratchet and Clank space fighting, which I always found tedious, but was glad it was in it, because it felt like it was part of the game.
Either way, in my opinion we need to wait and see before we hype up a game, otherwise we can end up with something akin to the hype of TitanFall and Watch_Dogs. It was also smart of Sony to get this as a timed exclusive.