I've seen some discussion in game and forums about the models used in the game. I wanted to put my perspective out there.
#1 - while better textures and models would be nice, they would also be harder on older comps. What would be ideal to me would be a downloadable "patch" somewhat like the Duke Nukem 3d models mod. So you could run the game under it's original specs or modern ones.
#2 - I notice that the starbase interiors are w3d models. Progen bases with their VAST open (tho inaccessable) areas were always hard on frame rates. I'd LOVE a set of replacement model files that had those open areas sealed off and deleted from the mesh - they look great, but in a game that otherwise runs just fine, Progen bases always slam my frame rate, turning the game into a slide show....