First, I just want to say Divinity:OS Enhanced Edition and Divinity: OS2 are without a doubt my two favorite games. Bravo to Larian for such excellence in these fine games.
I've really enjoyed the Fantasy IP but I am also a HUGE fan of Science Fiction and want to suggest that Larian Studios develop another cRPG with a science fiction type setting.
The game could feature things like Sentient robots, Various Alien Races, Hacking, Lightsabers and "force type" powers, Classes such as the Medic, Hacker and Bounty Hunter. Guns, lasers, various alien weaponry... surfaces could be replaced with Ion, Plasma, Temporal effects and Alien Toxins.
Most importantly, the game should have all the humor and charm of Divinity Original Sin 2 but in a sci-fi setting where the lady vengeance is an Intergalactic spaceship!
I'd preorder the heck out of that game