That's good point, because epilogues were confirmed and all because of feedback. They could literally ignore it, because the game is "done".
And this is not a small feature like the mirror in camp. This needs a much bigger piece of work to be done.
What they could do, realistically, is give us an epilogue where we hear about what Karlach and company have been up to in Avernus, and make it a super hopeful one. And then for DE they can extend her existing questline somewhat (like they did with Beast in Divinity) so that it has more content, but they might not change the original concept or add an engine fix branch.
Originally Posted by Nessius
Just a minor subject change, but I'd like to get your guys thoughts on an epilogue. It's looking increasingly likely that they're gonna do a kind of "6 months later" tavern reunion (of course they still might not but it is something I've seen requested a lot and there's some stuff suggesting it in the files). If this happens, how would you guys feel about it including Karlach (and Tav/Wyll) returning from Avernus having found an offscreen cure for Karlach's engine? I know it still doesn't resolve her questline problem, but it does seem like the easiest thing for them to do without adding any new quests. If they do go the reunion route I can't really think of a reason how they could get there if Karlach's engine wasn't fixed since it's so unstable, unless they decide to just be like "well great to catch up guys now I gotta go back to hell byyyyeeeee". Which I think we all can agree would be kinda lame.
Pretty much this lol.
It might just be the cheapest/most realistic option for them given the resources necessary to get it done. I would accept it, while hoping for some more content for Karlach and Wyll because they need it. Two fetch quests can't be all that an origin character gets, even if you don't wanna change her narrative concept.