I stand (somewhat) corrected. In any event, let Cryptic find some way to get these ships in the game, somehow. We in the forums can always find some means to justify it. ;)
Bearing d3nzark comments, In the original series episode "The Enterprise Incident", The Romulans were using D-7 cruisers because of a tech. exchange. But, what some seem to be forgetting is that the D-7 frame was also compatable with their cloaking device, thus saving R&D costs for the star empire (and causing the Klingons…