from the Q&A we know that for Khorne, deamons will be fast and hard hitting, but squishy, while the mortals are hard hitting but slower with better staying power.
What do you guess could this mean for the other gods?
Nurgle for example:
could it be that the mortals are the "fast" part of the units and deamons are the part with bigger numbers (just as example)?
What about Tzeench?
Deamons more support and mortals Frontline?
What are your guesses?