Keith Thurman,Danny Garcia,Juan Manuel Marquez and Brandon Rios have been mentioned as potential opponents for Cotto ,i'm not sure how possible are Thurman and Garcia are ,as Jay Z ,Cotto's promoter and Al Haymon don't get along ,but all those fights i wrote are good fights except Rios which is pointless.
I'd check out him Vs. Garcia... Why not? Vs. Thurman, Timmy or Marquez I'd pass. Brandon is in the process of trying to get his sh*t together for a possible last run if possible waaaaay to soon for him... he needs like a --- type caliber opponent first to test out the new trainer.
As a big JMM fan, I think he should retire. If he does have one last fight, it shouldn't be against Cotto. Since there aren't any big fights at 154, I'd happily watch him v Garcia or Thurman.
I hope Andrade gets the opportuniy as I see him as the best 154 talent. I doubt cotto would take the fight but the fight (which Andrade would win) would give him some name recognition and get people to realize his talent.