Sorry for being late to the party - busy yesterday!
Lots of good ideas on this thread:
+1 for Devanu Kopa and Grishak Jenta
+1 for reference cards for those models that don't have them
+1 for unladen beasts and a casanii herder/beast handler
+1 for civilian casanii, delgon, dhogu, etc...
+1 for the bolas - I have a mounted Reyad with a bola, but the rules don't seem to appear in the new set.
The Moby Dick idea (Grishak / Casanii characters) also looks great and would fit nicely with the theme.
I know it is off theme, but I would love some Delgon civilians and some sort of shrine for them to worship their gods.