Well It was propably mentioned several time, and maybe a bit more for the mod faction but it would be great to have more not only pure humanlike groups around, like the Insect like race in a complete hive way. That uses fitting creatures like the spiders or otehr creatures like this. Than again I fear it would take great changes to create a civilisation like this.
Groundchanges on maps:
The other thing that mainly fells more into wishes is more different country changes from the influence area that would fit to the races, like when you have for example a bit more infecting one that the countryside changes under their influence infected too for example.
That mainly about a thought if tehre is a kind of interrest I can spend time and write more information down about this and hope that I not created a double mention of ideas.