I don't know how wow or lol are built-or even how a multiplayer game like arma is turned into a persistent world with the dayz mod. But it would seem the first step would be a multiplayer version. It could introduce interesting new kinds of gameplay tho since spacecraft can be controlled by mission control to some degree and also the pilots. Mission control would be an ai or another player controlling your craft. You could determine how much control to hand over. Someone playing as a mission controller might have several craft under their control. You could request control back at any time. And that request might be deniable in high traffic environments. This allows players to participate in more advanced levels, learn more about ksp and space operations and yet not jeopardize others. Cooperativrly building structures in space and on other planets as well as doing 'science' are the obvious tasks that advance a player's standing.