and tbh, Steve Austin's character ''Costa'' would be a similar henchmen to Ron Perlman in Nemesis as ''viceroy''
basically as the main antagonist loyal second in command
and tbh with Star Trek Janeway, you kinda must explore what had happened to the cardassian-kazon hybrid child ''Sessen'' and i'd love for Culluh to turn into a surprising ally, especially that would make sense, against an enemy who is a threat for all quadrants, where he wants to stripmine planets, bases of their resources
and as well as a organisation opposite to starfleet's views, that would make sense too, and SkyTech is a good name i think
also i would love for alexander munro, telsia murphy to be canon (from the elite force video game)

as well as finding out what Naomi Wildman and Miral Paris ended up becoming post voyager, many years after their return to earth