Super Smash Bros. Brawl (maybe Game Arts people?) as well as Team Ninja expats. That's all we can confirm, given our non-possession of the magazine.
But some guy on the IGN boards (which require a login, so check the GoNintendo reproduction here) went on to (probably) summarize the article, revealing the game to be a 2.5d, four-player fighting game with online play. Hey, we like those -- especially when they feature beloved characters from our youth! Although we don't like Teenage Mutant Ninja Turtles fighting games (well, the SNES one was okay, and the NES one was technically impressive). According to the IGN poster, Ubisoft is shooting for a September release. Bossa nova!