I didn't really expect a huge party at all.
new players will want to jump right into the action and play missiosn and stuff.
When everyone has settled in there is more time for confetti and baloons.
The 2 year anniversary that is comign up will do that nicely.
Other wise there were a few dance partys and some events like PvP, costume and trivia contests I believe.
Most of it did not happen on ESD but DS9.