Will they make it? Uh, considering the relative success of New 52 and the fact that everyone and their mother knows them as one of the two monopolies of the comic industry, I'd say yeah, they're going to fucking make it.
To celebrate? I think the comic industry in its current state is just too timid to celebrate anything, in case they take a risk or something! They'll probably just rehash some of their old shit and throw out any new ideas or characters.