User blog comment:Vivaporius/Extra-Galactic Invasion Campaign Idea/@comment-9465750-20120706184336/@comment-3398633-20120706191538

That is the plan somewhat. The EoC is part of the Eternal Legions of Chaos as a senior led member. The Xai'athi are still an independent force, and maintain a seperate empire which has been in the new galaxy the longest.