Yes, many think that, but there is little to suggest as much. If the actors are getting called back for addons or rewrites - they'd be all over the internet with that information.
The problem is bg3 isn't red dead redemption. The stories, games, genre's, and playstyle is completely different between the 2 games. Red dead 1 and 2 are master classes in what they do. They tell a linear story about a cowboy character and we as the player are along for the ride. That's not what bg3 is the whole game is built around player choice and action driving the narrative forward as the player sees fit. Karlachs story and ending flies in the face of that whole thought process. Until the last epilogue update karlachs ending was at best dead by the end of the week. When you meet karlach she is dieing and looking for a cure. When you finish the game she's still dieing and still looking for that cure. The player had 0 impact on her story. Bg3 isn't linear and that's what makes her story so hard to accept for alot of people.
