Those who prefer to have few obligations outside of raiding should be happy. Yes, there is lots of stuff to do, but little of it feels critical to staying competitive in-game. The stuff that does feel critical, like doing a 4-5 island expeditions for the weekly 2500 AP, are not very time-consuming. Pushing a key takes a little longer, but can be fun in itself (more fun than raiding imho). Figure one hour a week to do islands, 30 minutes every 3 days to do emissary quests (if you still need them for any reason), and one night a week to push a key... We're only a month into the expansion, and already I spend as much time leveling my Dark Iron as I do playing my main. For better and worse, it's an easy time to work on alts, without sacrificing on your main.