They've already done this... with WoW. Having dipped back into it in winter, it's more or less an single player game now, with more effort put into phasing play

They've already done this... with WoW. Having dipped back into it in winter, it's more or less an single player game now, with more effort put into phasing players into whatever type of game they want to play and getting them there as quickly as possible. Leveling is laughably fast, and the endgame is mostly done with arbitrary people that will have no investment in decent socialization within the game.