Once the barrier is gone Zemuria can pull an AoT and enjoy immigration from such fascinating places such as Africa. This is of particular interest to the Claudel/Dirke bloodline because their genes are extremely dominant due to being the Calvard version of the von Auslese.
(There is an odd Germanic theme with Valhalla Sector, Loki/Laegjarn and Laevateinn. I also suspect that Yume has her Mare genes from Maxim, who is blond.)
Loone is the 7th Anguis, but he doesn't know it yet. The dream/nightmare refers to the time between the Soft Reset and the beginning of Kuro, because it is the lost time of teh Run.