These sound intriguing; care to elaborate? Around these parts, especially, "Mirror Universe" is pretty much synonymous with
Trek; how would you define a "non-
Trek" version? Do you mean "non-Starfleet" or something more fundamental?
And how would you define "other sci-fi in
Trek roles?" A crossover of franchises or concepts, such as, say,
Stargate in
Star Trek, or what?
More, more! We insist!