What does a Victory over Mosley mean for Canelo and the 154 LB Div?

If Canelo beats Mosley what will it mean for his career and what will it mean for the 154 lbs division?

In terms of Resume Mosley would be the best fighter he ever faced. However, Shane has not looked good in his last 3 fights and appears to be done. Though it may be that he was weight drained at 147. If Mosley appears to be a challenge that Canelo adjusts and beats convincingly he will headline his first ppv match in September. If Mosley looks bad the fight will only fool casual fans.