I'd like some intrigue events, honestly. Things where you can actively USE information to make changes in the world through the right word in the right ear, through stirring up (or calming down) the common masses, through creating the right sorts of deals that have measurable effects in the world. Diplomatic events, etc. Not tasks, but things that actually use skills.
But, full disclosure, that's totally because my character is sitting on a handful of social skills and stats that are largely useless with PCs, so it'd be nice to have something they're good for.
Other than that, my preference is always for small group things, where PCs have a chance to interact, grow, change, and make a measurable difference on the world in the bargain. A big war/battle type event would be fun, but it'd be really nice to see that be a multiscale thing, where the commanders are playing more of a chess game with living pieces, and the pieces are important PC squads who are either fighting battles, or sneaking behind enemy lines for scouting/espionage/assassination/etc, where they're very active but don't have any opportunity to see the big picture that the commanders have.
EDIT: If you go with something like the above, though, you'll need to spread the GMing out, because there's simply not enough of you guys to do something like this. I'd suggest staggered squads - the first wave, y'all run the squad-based plots as a model for what these should look like, etc. Make the first squads also be people who are willing to GM a squad after them, and use it as sort of a training field, then let those players GM for the next group of squads, with staff oversight and aid. Assess afterwards using logs/asking players what needs to be tweaked/clarified, etc, then move into the next with the improvements made. Since the game's in beta, this is a great time to do something that's explicitly test/training, since you can always roll it back if everything goes to Hell.