At 33 years of age, GGG won't be around forever. If he doesn't get a big name in the next couple of years (Andre Ward, Cotto or Alvarez) He'll go down as one of the most avoided and questioned fighters in recent history)
I'd like to see Mayweather fight Khan, Kell Brook or Keith Thurman in September, but I have a feeling he won't fancy taking on any of the "New breed". I like Khan's speed and offensive output to potentially out point a elderly Mayweather.
For any casual boxing fans who don't appreciate defensive boxing...check out this recent slugfest.