This is a new mini from GW from the latest gathering storm
(https://2.bp.blogspot.com/-Y_2N5S72cds/WIUcz9HjfiI/AAAAAAABLvI/Yvewgp3fNy0y98ku8MF0uhTnA3OHVSmlwCEw/s1600/reveal2-391x500.jpg)
Modeling opportunities?
I thought the same when I first saw this...female daemonhost?
Even creepier...MALE daemonhost...
Would do well for Slaaneshi stuff.
Some of the Gathering Storm models look pretty good for INQ28 (albeit unfortunately bundled into packs that are not cost effective if you only want one or some of the models).
However, I'm not so sold on this one. It's quite busy, which may make it hard to convert, but the real issue looks to be the sizing. This looks like a 50mm base to me, so the actual figure, scalp-to-heel, seems to be about 40mm tall, which will make it a somewhat odd size to use at either 28mm or 54mm scale.