I think its all much simpler.
New models + support= good army sales
Almost 10 years of nothing = bad army sales
This still makes me worried about all the subfaction made out of only whfb models like Delfs, Dispossesed and Spiderfang.
I am starting to worry about even Ogors. The range isnt any older than Bonesplitterz. Ogor Mawtribes only received 2 warbands and a hero, BoC had similar updates. Imho not safe anymore.
GW hq doing weird things.