Wraiths got reworked like- 5 or 6 months ago?. Basically, you can still get an anchor if you make a statue of yourself given you are a Hump or have enough skills. Now you have to choose a goal as wraith that will give you chromosomes if you managed to complete it, like;
Ascension +1: You will get a chromosome if you managed to get 150 angst and ascend
Revenge +2 if you win, -1 if you fail: Stay on the same tile to the person you swore to revenge the moment he gets killed.
Decay: Grants no chromosomes and lets you join a late party right away.
After you choose a goal, you will be able to choose between two wraith skills. They are random and may or may no help you with your goal, and yes, grue is still a thing and now cost 1 Angst. Mind that know wraiths have a bigger incentive to fuck each other for Angst gain more than ever now. Angst gain now is based around getting memories from dead people/creatures that spawn on top of corpses the second they are killed, aside from other methods are still guarded.
Forgot to mention that the Thanati now have archetypes to choose from since a month or two ago. Stuff like, better combat skills if you go Millitant, cheaper explosives if you go Curator or no chromie loss from torture if you go Martyr. Kinda like the migrant archetype donation but it's free and anyone that goes Thanati can use it.