Based on hearsay and early buzz the movie seems to be at least above average and if true combined with what you said this movie will be huge. Gonna be one of those "have you seen (insert title) yet" movies I think.Critical acclaim might be a long shot at this point, but I'm almost certain BvS will be a huge financial success.
If the first appearance of Wonder Woman, Superman and Batman together on the Silver Screen can't rake in a cool billion... I don't even want to think about it.