am I not the only one who was a little disapointed they didn't include any nurgle warbands? honestly, their aesthetics in my opinion are great, I think they really missed a trick not including the death guard or something.
They didn't include any legions dedicating to one of the four gods of chaos. If you noticed, they've only included legions dedicated to Chaos Undivided.
Don't worry man, there is more to come, and since we got all Undivided legions, that gives players the freedom to choose which god they wish to be dedicated to. I'm sure we'll be seeing our Raging Zerkers, Party Hard Noise Marines, and (un)Hug able Plague Marines around when the game gets started.
From http://forum.eternalcrusade.com/threads/the-first-foundings-q-a.1027/ Will Plague Marines, Noise Marines, Bezerkers, or Thousand Sons make an appearance? Yes, for sure, but most likely in a post-launch update. Will there be the Marks of Chaos? Will the Gods bestow gifts or boons such as mutations or powers on us as we level up? The chaos gods will have a presence in the game, although it will expand over time. Expect them to be involved in your loadout at launch. with this in mind imagine that you will slowly turn into a Plague Marine as the game and you advance in your dedication to Nurgle and the Gods influence grows
I wonder if as sorcerers we can choose which Chaos god to get our powers from (excluding Khorne of course).
That would be awesome, even tough I would probably just choose Tzeentch, having Nurgle and Slaanesh sorcerers around could make things much more interesting.