Reasons to spend time out in the game world and not in dungeons would be fantastic.

However, camping spawns would be a terrible step backwards. There are just too many negatives that history has proven to such an activity. Further, downtime is a 'bad' thing. It's not bad to not always be 'rush rush rush to the end', but you should always be doing 'something', not waiting on things to happen.

So what does that leave? Well, SE is bound and determined to make use of FATE's, so I'd suggest aiming suggestions at them. Altering them so they actually do something to the world would be a large step in the right direction, but again, people would need a reason to care. The GW2 dynamic event system is a more effective version of FATE's, but even that isn't always interesting.