Patch 3 comes out on the 21st, it probably won't have a good Karlach ending since that would be kinda soon and they already said they're working on adding epilogues to all of the characters. Beyond that they haven't said what they're going to do, but since the most requested story change after epilogues is giving Karlach a good ending (I checked), I have high hopes that will be next.
Also I have a post on the discord feedback thread asking for another Community Update to address Karlach having a good ending (among other things) and it's pretty highly rated, so hopefully they will take note and maybe give us a peek behind the curtain.
According to their tweet they already gave Karlach "The ending she deserves". And it was not worded in any way that implied that they would be working on her ending as well as the others. I feel like they just used this new garbage ending for her as a bandaid until they either announce that this is her cannon ending or until they man up and fix it for a better one. Since they didnt announce anything else about her since them I highly doubt that they will be giving us any news now. Larian is pretty tight lipped when talking about their updates and as good as it may be sometimes, this time it is only working on building more anxiety on their players. And it is as other people have mentioned before, dont put your trust in any company, remember how we were all hipped with Cyberpunk 2077 since the game was being developed by a company with a good track record of excellent games?? We all saw what came out of it, the game is only becoming trully complete and fully playable now, 3 years later. Larian dont need to make us happy with their game anymore, they already have good reviews and millions of copies sold, and they are still selling the game, just today they sold 321K copies on Steam alone(acording to SteamDB).
Dont put your hopes in a company that can abandon you like all of the other ones did before.
