Dawn of War Codex

Well I was going through Chaos Space Marine's official codex and I remembered that we originally had more chaos demons then we do now such as Bloodthirsters and Demon Prince. I was hoping that Chaos could maybe get those units and have more units added. I also saw that each Chaos god had a champion, Khorne had a Bloodthirster named Skarbrand he was considered the king of Bloodthirsters by Khorne himself and Nurgle had a Champion named Typhus who had a ability to turn the dead into zombies then those zombies on bite infect and poison them. These are some of the things that I'm hoping we can add to maybe make elite a little more challenging well and make Chaos a little scarier.

1. We don't have the models, nor the animations for those units.
2. It would be a nightmare actually balancing all those new units.
3. Chaos already has a ton of units (compared to other races), which means that they don't need yet another need addition.
4. Elite is not about making DoW 2 more fluffy, it is about providing a balanced multiplayer experience.
If you are interested in those kind of changes, maybe you should check out the codex mod.

In conclusio: Won't happen.

Well its a shame that it won't happen.

Generally Elite will try to make the game closer to the fluff wherever possible so long as that doesn't impede on balance as that makes the game more enjoyable for anyway who likes the 40k lore.

However, ultimately if it is fluff at the expense of balance, then balance nearly always take precedence. The only exceptional is when the fluffy-addition would create something "innovative" for play and thereby increase the longevity of the game as a whole.