Someone could do what I've been doing and make historical holodeck programs based around these battles that were mentioned, but never seen in the shows. I've done ones on the KDF side where you play the parts of Kang, Kor and Koloth in some of their famous battles. Since it is your player character playing the part of these other characters, you won't see their likenesses and there's no EULA issue. I'm working on one right now about the Earth-Romulan War. The only canon character you'll meet is Bryce Shumar, and he was never portrayed by an actor, just mentioned in a TNG episode.
If anyone wants to make something like this about the Dominion War, feel free to use the [HoloHistory] tag in the title