I nominated at least 2 of those SW fandoms. KotOR I and II could be argued either way. They could probably be grouped, even though they were made by different developers, because they take place within 10 years of each other. And some characters, like Revan, affect both games or appear in both. On the other hand, somebody might only want charactrs from or events from one of them, so I could see keeping them seperate.

Since SWTOR is 300+ years later, I think that should be separate.