If someone starts putting it together I'll throw 20$ to the cause.

This fight seems the extreme of being decided by who forces their fight. I see no shot for Porter if the entire fight is at range. I see no shot for Brook if Porter can get inside easily and turn it into a fight rather than a boxing match.

What I expect is complicated. There seems to be something wrong with Brook otherwise he would have fought for a title 3/4 years ago. Going off that I'll say Porter gets by the jab and makes Brook uncomfortable. Brook finds a way out. Maybe a clash of heads and Brook claims he can't see. Not sure but I think he looks for a way out.