I've seen various previews which were all rather mixed and had a "better wait for more details" attitude. Even those who played it on here said there are awkward design decisions, making them not want to buy it.
Just saying "it's Bomberman, we know what it is" is a stupid thing to say. That's what Bomberman for X360 best illustrates.
But if you don't really care about your gaming budget and just want a new Bomberman regardless of quality, go ahead and buy it. If it's halfway decent, I'd consider it at EUR10 maximum.