The game seems more like Diablo (as mentioned in the video) than WoW; 4-player drop in/out, randomly generated maps and axonometric projection. I guess that's why it also seems generic and bland (after you've completed Diablo II a few hundred times), but I think the bigger reason for that is the lack of story-driven trailers. They seem to focus more on the features and play style, rather than showing an immersive story that piques your interest.
That being said, I still intend to get it, I loved Diablo and always said that the DS would be a good platform for a remake.
Good timing, actually, considering we usually see summer droughts. This is the kinda game that helps stave that off. Still a little on the fence, though. Don't even play on my 3DS all that much. I'm not convinced n-Space can make a game that will keep me interested for long.
OT: Where the heck are Luigi's Mansion and Animal Crossing? Those should have been out around this time already...