I want to see content that is dynamic, benefits from coordination between players, is constantly engaging, and doesn't rely on too many gimmicks.

At the moment raids are probably my favorite thing to do in game, but I don't like their scripted formula. It hurts their replayability and this is made worse by needing to constantly farm them if you want gear in a reasonable amount of time. I would rather see raids that were less predictable where you're not going to figure out your optimal timeline and just repeat that forever. This would also require some changes to the raid formula, most notably the loss of super complex mechanics that you need to slowly progress through. I can see some of the appeal of treating these like puzzles in current savage, at least when a tier is new, but they eventually just become a small hurdle.

I also like open world content in MMO's. FATE's/Hunts are great ideas, but they haven't really evolved at all and leave a lot of their potential untapped. I'd like to see these open world events have more impact on the world and again be more dynamic. Having to repel a hunt mark that is attacking a city for example could make for an interesting event and could provide other goals for players to care about besides just whacking the monster. Say, whatever monster is being fought might start attacking a city gate, and that could require the tanks to stack on that gate to spread the damage and let it hold. Or the monster might be crossing a bridge that DPS could focus on to get the monster to fall and completely change the location of the fight.

Some of my least favorite content is PoTD/HoH. I don't like leveling, and while the sort of random nature is nice it's negated by the really slow build up of difficulty (if starting fresh) and gimmicky traps and random status effects. Those things just don't add anything to the gameplay for me as they are just forced on you (and typically not fun at all) and there is little that you can do to influence them. Higher level PoTD style content without random traps/statuses and leveling as well as more boss encounters would be very interesting in my opinion.