Speaking of kitbashes, I would have loved to see more variants of the existing classes all mixed together in the fleet battles. For example, the Miranda has the Lantree and Saratoga variants (and arguably the Soyuz class fits as a variant as well), but we really only saw the standard version (save for some questionable impulse engine placement). Same for Excelsior, the 1701-B variant was only seen again as the Lakota. The FC ships didn't seem to have any variants that I'm aware of.