I don't think MIIIB would be a step back as long as the script is as good as the 3rd. The 2nd one wasn't bad, it was just average. If they aren't gonna make the 3rd one any better than the 2nd, then they probably shouldn't bother. I think Seven Pounds was a good movie. My only problem is that his last 3 movies were I Am Legend, Hancock, and Seven Pounds. None of them are amoungst his best, funniest, or most entertaining. I like that he does different things but he needs 2 spread out those kinds of movies in between ones on the level of his best movies.