Apparently, we can only wait for patch 3 and some information from Larian regarding the finalization of Act 3 (Karlach suffered the most from the cut content of Act 3), in case Larian decides to simply ignore us and does not give us at least a hint of what they know about the problems with Karlach's incredibly short quest line (which also leads us to a neutral ending as the most reasonable for a player who has played the entire game with Karlakh and does not want her to die or become an illithid), then we will be very disappointed. Especially when he sees this mocking inscription in the diary again: “We did everything we could for Karlach.” This is simply disrespectful both to the character and to the people who loved her.
