I'm glad you're interested in Broncosaurus Rex. It's a fun setting.
The dinosaurs represent a variety of kinds of life... some are modeled after native americans (the velociraptors in particular) while others are not. The T-rex are intelligent but in a primal, cunning way, not the sort of intelligence that builds cities (but it DOES build empires), while the protoceratops are more like "zen masters" -- learned sages and scholars with deep psionic abilities. The zuleps are savages, but intelligent savages. And so on. It depends on the creature and tribe.
As for shooting them and stuffing them, yeah, that's one of the conflicts in the world. Some offworlders just want to hunt, or farm dinoburgers-to-be, while others realize the world's native potential.
As for future expansions, the comic is finally coming together. I've been saying that for years, though, so don't take it seriously until I have something to show for it.
But by April or so, I should have some previews. When the comic's ready for publication I plan to start producing some new material, probably starting with adventures appearing in the comic.