Floyd Mayweather Jr. already buried the chances that he might face Manny Pacquiao again even if it will be in massive demand by the community.
He mentioned that he already had a hard fight in his life and all he will do now is purely for entertainment and fun.
It does mean that even in the exhibition matches, we will no longer see "The Money" fighting a real boxer within his league which does make sense after all. Those who will be annoyed at his exhibition match should just accept that Floyd is just making big money even in retirement.
Floyd Mayweather is now just doing exhibitions to earn money to sustain his lifestyle as in exhibition fights he will not be training so hard in the gym to get fit unlike if he will be fighting Manny where he needs to be in great shape because that would be a competitive fight and he will lost his zero if will not train hard

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Bottomline, i think Floyd is already done/retired in boxing and will not risk his life fighting Manny so i think the latter should also do the same, fight in an exhibition fight if he misses the lime light because i don't think that he will do exhibitions for money as he has tons of it right now.