I think the buff is okay, but we can't expect too much. I'd like to see some kind of final event, some epic showdown against the organizers, but I'm afraid there won't be anything like that. And it's unlikely there will be, with people so reactionary towards any new addition to the game. Even though every game has events, and they're much cooler than the ones we've historically had in DDO.
I think it's good that the devs are starting to think about adding these kinds of things, which add character and novelty to the game.
And it would be even better if they started to break out of their rigid mindset of permadeath and new characters. Create events that encourage grouping instead of discouraging it, that allow players to use their usual characters, that are more than just a grind! This year's event wasn't bad, but keep exploring, devs, what can be improved for future years.