Long time lurker, first time poster.
Apologies if this has been discussed elsewhere.
I noticed when reading through the fluff section (which I am really enjoying) of the 9th ed book that while the Death Guard and Thousand Sons are specifically mentioned, the Emps Children and World Eaters are missing... Retconned maybe?? I also happened to notice that EC and WE are also missing from the CSM transfer sheet packaged in the Start Collecting CSM box I received a couple of weeks ago. Oddly TS transfers are present - which transfer sheet comes with recent TS models (I've never bought any)? EC/WE getting their own transfer sheets soon (along with other stuff)??
Anyway maybe something, maybe nothing. I found it interesting though.