As i just mentioned to my Wife, this Slaanesh loving Witch ( cheers Honey ), i think the Alpha Legion won't make it into the Game. So i figured for my self, no matter which Legion i choose, I play Alpharius . Even if i choose to play Loyalist as 2nd i play Alpharius. Just for me and my coruppted mind

Night Lords, if only because they're reasons for going traitor are far less convoluted than the other legions.

Well, considering there's no Slaanesh oriented Warband/legion I guess I'm going to have to go with Iron Warriors. Iron within, Iron without.

World Eaters. Blood for the blood god! Skulls for the skull throne! Souls for the red king! Glory to the shattered XII Legion!

Read "Lord of Night" by Simon Spurrior. The book to which not only do the Night Lords have a Daemon Prince leading them but also they manifest Furys. They might not directly 'control' the Furys, but they are useful in the terror tactics they inflict.

After the 'assassination' of Konrad Curze, the Legion splintered into multiple feuding warbands and eventually relocated to the Eye of Terror, so says Chapter Approved.

Neither of which these two sources have been corrected with current write-overs that I am aware of. Yet... So yes, being that the majority (perhaps not all) of the Night Lords now reside within the Eye they are in fact subject to Chaos mutations for the majority.

Not having World Eaters is just...

Heresy.

I gotta go with the Night Lords the mere uttering of their name cripples people with fear! but I would love to see the World Eaters

Dude if this happened it would suck if you were fighting the Nids and a World Eaters warband just came outta no where and attacked you.... Talk about brutal combat...

No I haven't seen the game art (yet, I certainly intend on looking at some of it right away though) and that's awesome!

If the rumors are correct about a fifth Warband/Faction/Clan/Craftworld being added, and if they stick to undivided chapters then we'll most likely get both Alpha Legion and Night Lords, both of whom will add much expertise in both fields....or they might troll and add Red Corsairs.