So given Star Wars is at Marvel and Avatar us between series,anyone hoping they will expand there currently Dark Horse Avatar line into an outright EU?

The Avatar World has plenty of untapped history to use, both in the past present and future of what we saw on the series. Yang even sad he wanted to check out some past Avatars, and all kinds of historical goodness about the nation screams awesome.

The Unification of the Earth Kingdoms, the foundation of the Air temples,the rise of the Fire Dynasty the Epic Water migrations. ..all great stuff to be mined.

Hell the shows have vast story potential open, the Earth Wars, the adventures of Tenzins's Generation , the future of Korra's age....

When you have a setting thjs vast, it s a shame not to take advantage of it.