It's time to expand on the Vishmitals. After all they are the second most important political faction in Negav ^^
http://felarya.com/wiki/index.php?title=Vishmitals
I see them as a proud race, quite sure of their superiority. They appear as polite but quiet, quite cold and calculating. They have something quite Asian in their behavior.
I'm starting to imagine a sort of secondary language system with hand-based signs. Vishmitals doesn't speak a lot, even among themselves, and would use a lot their hands to make discrete gestures and pass on informations. A vishmital could say something, but the sign they are making wiht their hand would either negate or highlight what they say. That would reinforce their secretive nature, as well as create some potential for misunderstanding with others races.
I'm also starting to imagine their history and what exactly led to their downfall. It's pretty much a blank shet at this point.
So if you have some ideas or suggestions, please don't hesitate