Well the removal of the BSG ships would not be, in my opinion, a good thing. Having them allows players more ship options for their unaffiliated charectors. They give players another group of ships that have a kind of unity, sorta like the slipstream, ravens claw, and death scythe; all have the same conceptual design. The difference is that the BSG ships are based off a show.
However, as far as I can tell they are more freelancerish then say the ravens talon (if you have seen the american F23 prototype, it looks more like that). And the reason I think the BSG ships have a home in this mod is not just due to the ships (IMHO) fitting in the universe, but also the community that uses it. The BSG are not the only ones who use the viper.
I think the main hurtle between the current BSG ships and anything else that would be added is that direct references to BSG (such as the names and exact models) would probably not fly. I could see similar models that would not only work as a BSG ship but also as a legit freelancer ship being added. The talarca cruiser is a good example, though I know of the RP callouts that where made due to its use...
Anyways, I am still working on a new model (kusari bomber), the old model (BHG bomber), and have plans already for a bret one too. (I think someone wanted a cleydsdale with a red nose...) I can begin working on something like the raptor crossed with a eagle; could work as a zoner anti-capship fighter as well as a colonial raptor. Of cource if Igiss deams the BSG ships are leaving...