I wonder what Bungie is going to do with Savathuun and her Lucent Hive. They must still have a part to play. They'd be great allies, if they could stop acting like typical Hive for five minutes and have Savathuun start acting more like a strategist and stop being a deceiver who can't be trusted.
The Cabal and Eliksni have joined us, now all we're missing is a Hive and Vex faction.
Edit: Because Savathuun doesn't have a worm to feed anymore, she doesn't have to follow her nature. She CAN pick a new destiny for herself. Bungie just has to get on top of writing her redemption story.
-
Doubt we will get a faction of friendly vex but I think we could get harpy asher mir as an ally if Bungie ever remembers that plot point