Well, I got to do two great events in the last day - a guild hall claiming and a win on the event in the last zone of the expansion, Dragon's Stand.
The guild hall claiming was pretty neat and a good challenge; a definite huge middle finger to small guilds, but very cool for medium large ones. You are essentially on a huge map, and have to complete a bunch of events that are spread out all over it in a certain time limit. No way to zerg it; you have to split up into 3-4 groups and coordinate tackling them. Then, after that, a few big bosses. Felt good beating it for sure.
And Dragon's Stand, well, I finished the story a few days ago and thought, ok, well, what the hell could be going on in Dragon's Stand? Then I got to experience it and thought, whelp, here is the real end of the story. It was pretty damn cool. I'm sure it won't be after the 100th time I do it but it sure as hell felt epic doing it for the first time.