Came across this in my library. This edition was made for the console release, but they made the PC version too and it's free to those who owned the original. Local co-op, controller support, and now a good UI (also new content, animations, voice acting).
Probably enough to make me play it again cause it was fantastic.
Summary of major changes here:http://www.divinityoriginalsin-enhanced.com/en/game/enhanced/about