Important note from the datamines is that people found new kiss nodes for Gale (not ingame yet but may mean more characters than Halsin and Karlach will get new anims soon) as well as hug nodes and dialogue for Shadowheart (implying that everyone's wishes for hug your partners/good reputation companions are about to be applied).

Pre patch 4, there's been datamined stuff about a photomode as well being posted about reddit. So I have a feeling that the "smaller" stuff is being oushed out first along with hundreds of fixes, and the big stuff is still being worked on bit by bit. We know epilogies are being worked on too, since patch 2.

So I'll keep inhaling my daily copium and go as far as think that it'd be insanely stupid if the devs did everything mentioned here (biggest wishes for quite some time, mind) and just ignored Karlach. I just think it will take quite some time to implement that. We need to stay patient but HEY GUYS THE NEW KISS ANIMATION, AM I RIGHT???