Comparing the longevity of a pvp game to a pve game is absolutely hilarious. PvP games tend to be competitive even in a casual setting and because you're playing people and not AI the game is different every match. As long as the game has a fair amount of maps and game modes you don't need a constant stream of content. Its completely different from the repetitive and progression style of pve. Eventually you just run out of things to do and its simply inevitable. No developer will ever be able to keep up with player demands in that regard and its been an issue forever for MMO's and the alternative of super grindy content the demands you to log in every day is not exactly popular. And if I recall correctly, eureka was not popular at all when it first came out. Most players hated it...and forget about that mess that was diadem. There's a reason they changed their approach to content.
