Thanks to The-Force.eu, we now know. Amatangelo explained the encounters to the German fansite as follows: "The Eternity Vault has five. It has five encounters. 'Bosses' is such a loose term. One of them, you have to hack this puzzle. You've got to split up the group, and you've got to fight back a bunch of different waves while people are trying to solve a puzzle in tandem." This information should comfort some fans of the game; there is more to this dungeon than a simple tank-and-spank.
More SWTOR information is headed our way as we gear up for PAX. Stay tuned this weekend as we give you the latest information from our reporters on the show floor in Seattle.