Bosses can still be instances. The only thing a dedicated server would do is put everyone on bungies network with a larger number of people on the same server allowing for persistent worlds. The persistent world is just the starting point, most MMOs then break of that persistent world into smaller instances. Currently bungie just skips the persistent world removing the need for deviated severs and breaks everyone into small instances. This is why I said it may [b]SEEM[/b] like a MMO but it isn't. They could've designed it to be an MMO easily, but that doesn't take into account all the rebalancing they need to do in order to make the open world playable. I'm not saying destiny should or shouldn't be an MMO, I'm just saying its close to being one, but it isn't one. I think it could've been an awesome open world MMO, but I agree they defiantly would've had a much harder time making this work (I think they took the easy way out).