WildStar is a new massively multiplayer online game from the folks at NCsoft, and Carbine Studios. So far, it's known that the setting will hinge on sci-fi with a hint of fantasy to it, and not much else.
Attached is the gamescom trailer that debuted the game. In it, we can see that Carbine is aiming for a striking aesthetic that seems influenced not just by some other MMOs, but also from comic and anime sources.
You can sign up for the beta on the game's website. While you're there, you can also check out some of the blog posts that the developers have already posted in relation to the game, as well as more screenshots.