For those of you interested in Dinosaurs ... I am indeed planning on (eventually) creating a mod with Dinosaur races. Primarily, the main Sovereigns/Champions will be true dinosaurs, and then the grunt soldiers will be more humanoid dinosaurs (kind of like DK's lizard people, or Mario's turtle people, only dinosaur people).
I plan to have a unique faction for each popular race ....
For instance, T-rex (large therapod faction), Velociraptor (fast smart faction), Dragons (powerful magical faction), Lizards (smart magical faction), Humans (numerous faction, sovereign is a Demon/Devil), Snakes (Evil, fast, numerous faction) ... im not sure about how im going to implement Stegasaurs, Triceratops, Sauropods, Turtles, Frogs, or Crocodiles ... although im definitely thinking about it.
Snakes, Lizards, Humans, T-rex, Velociraptors, and Dragons are definitely making it in as separate factions however.
Velociraptors, Lizards, Snakes, and Humans will probably all have a sort of assasin (ninja) type unit. I think humans will have sniper teams, while velociraptors will have "Black Raptor Death Squads" and Snakes will have "cobra ninjas", and Lizards will have magical teleporting blowdart using chameleon ninjas.
this is, thus far, a rough sketch.
Meanwhile, T-rex and Dragons will have the biggest, most powerful creatures.