I have been watching the last Kingdom lately and have really enjoyed the roll family plays in the history (not historically accurate) of the show.
Danes must war with other Danes for their family name Saxton's are adopted by Danesto become part of their family tree.
Heirs are killed marriages made for alliances and lines of succession are very important.
I'm hoping since you guys are mostly Brits and the who monarchy is still kind of a thing over there you won't let me down on family trees.
Perhaps since it is focused it will have more political features than Atilla.
Your unit details and combat are going to be great I'm sure.