I really wouldn't mind the following happening after TPP
A Remake of MG and MG2 maybe even telling them from Big Boss' perspective?
A Game showcasing the origins of Liquid Snake (He's been severely underused in the series as a whole...lol nanomachines)
A Game where we get to play as Grey Fox
ZOE 3
Get er Done Kojima
A game set in WW2 playing as The Boss and showing the formation of the Cobra Unit pls. So much potential in that.