Mayweather vs Khan and Pacquiao vs Cotto II

I am pretty sure Pacquiao-Cotto won't happen. They have become good friends and have the same trainer and too much weight separates them. Pacquiao has never been a true welterweight and is more comfortable at 140. Cotto is a bit small for 154 but he feels good at that weight and likes to fight at 153 to 156 pounds. I still think Mayweather-Cotto at a catch weight of 155 pounds for Cotto's middleweight title is likely. It's a safe way for Mayweather to become middleweight champ unlike fighting GGG. Cotto would cost Showtime more than Khan but he would make them much more money than Khan would.