I play a lot of Guild Wars 2. They just announced a new expansion, too.

I really appreciate that you can mostly just pick it up and go do stuff. Don't need to make a formal group, don't need to commit to a particular build. There's not a gear grind. Some of the instanced end-game content people will want you to fulfill a particular kind of role (eg: dps, healing, various buffs) but mostly it's very relaxed.

The wizard tower convergence was also good big content. 50 players killing demons across a few islands. Fun stuff.

Even though there's not a gear grind, the optional "legendary equipment' stuff is kind of fun. Makes it so all your characters can share a freely stat swappable, freely reskinnable, item. Like i made a legendary sword, and now all of my characters can just pop on a sword, set it to whatever stats, and go. It's not mechanically better than a regular sword of the same level, but it's mildly convenient.