Hello again !
from gw fb :
A few of you eagle-eyed fans out there rightly noted that the new Thousand Sons Tzaangor unit comes with options for a sword, shields, axes and even banners and chaos brayhorns.
We asked the adepts in the Silver Tower (Design Studio) about this, and they cryptically informed us that Tzeentch has plans for this unit in the Mortal Realms.
Make of that what you will...