IF he goes a couple with GGG and wins some rds & exposes Golovkins lack of speed & head movement... I can see him setting up shop at 154lbs. Some good money to make there & you young guns in that division. I say he gets KTFO he heads to 154lbs
He has a better shot at getting fights at WW than LMW. LMW is much worse than WW for avoiding top fighters.
I would expect him to fight the Smith v Canelo winner regardless of the outcome of the Golovkin fight.
I'm a big Golovkin fan but I seriously hope that Brook gives him a great fight. It would be exciting to have a man with nuts setting up camp at 154 / 160. Then Canelo could have somebody else to run from
He will fight more regular and against better opposition if he goes to 154lbs than sticking to 147lbs. If GGG moves up then 160lbs is also a possibility too.