This could go one of three ways (if it does happen):
A. The Incredible Hulk TV series kind of situation: Distant from the character source material, but quite a delight to watch, with lots of quality put into it.
B. Steel movie situation: True to the source material, but embarrassed of certain aspects about it. At least it stays a delightful movie to watch (in my humble opinion), albeit being a messy one.
C. Somewhere in between quality, but still delightful entertainment to sit through.
I chose to compare Mel Gibson to Kenneth Johnson cause it's appropriate, both of them share similar attitude toward comic books.