Meant to write this earlier but I've been uber-busy. I've played Broken Sword to about mid game so far and like it much better than plain old Jomon. Excellent job on the graphics and the flavor text. It's obvious you've done your research and I love the Japanese horror film influence. That being said...
To me, the red Nekoni seem out of place with the regular troops. They just FEEL like they should be a commander unit. And did you mean to have both the O-toyo and Black Nekoni be recruitable? That seems a bit redundant since they are the same unit. Unless I'm missing something.
Also, though I must admit I've not seen every units abilities as yet, but I don't see any national summons. The update mentions castable Kyuuketsuki summon but I can't find it in my research lists for magic.
None of this changes the fact that I think this mod is awesome. I'll prolly never play LE Jomon again.
Interesting side note: While playing, one of my commanders was attacked by a ninja. While Jomon wasn't in this game and it was just a random event, it was still cool to think that somewhere, Jomon still had it out for the Broken Sword empire.
Keep up the good work Sombre. Reading through your posts, it looks like you've got your plate over full with projects.