lol Exiling Briala is merciful, at best. Putting her back with Celene is just awful, and teaming her up with Gaspard wouldn't last long.
What happens in the epilogue?
And actually I'm reloading and putting Celene and Briala back together so that I can have the eluvians. I talked to Morrigan and she said she wanted the eluvians... so our dialogue might be different once I reload.
There are several endings. Here are the ones I know:
Celene rules, Gaspard dead, Briala exiled: Celene continues to be hunted by elven spies and fights a shadow war against Briala.
Celene rules, Gaspard exiled, Briala exiled: Celene fears Gaspard's plot to return and relies on the Inquisition for protection
Celene dead, Gaspard rules, Briala doesn't have blackmail: Gaspard invades Ferelden or prepares for a war with Tevinter
Celene dead, Gaspard blackmailed: Briala blackmails Gaspard into giving elves more rights and tearing down alienage walls. The Inquisition isn't well-liked by the nobles for this
All three work together: Orlais is greatly weakened as Celene has to defend herself from plots by Gaspard and Briala which forces Celene to rely on the Inquisition
Celene and Briala reconciled: Orlais enters a new golden age as elves are given more rights and culture flourishes
Apparently Celene and Briala reconciling is the best ending while having the three work together is the worst. Guess the devs don't have the same line of thinking as some people on this forum.