Yes, the unlocked routes are Rumpel, Rod, and Karma (I couldn't finish Rumpel's route, was meh on Rod, and loved Karma's as a romance). Those are more straightforwardly romancey routes.

The locked routes are Waltz and Fritz. Waltz's route is officially the true ending, but in my opinion, Fritz's route is a better true ending. :P Both of those routes feature more plot, as well as Lucette coming into her powers and dealing with her angsty past. As well as a villain character I really love.