No not really, there's still no real coherent plot thread and the timeskip apocalypse probably mostly served to cover that fact up. There really hasn't been that much new content, and what has been added are mostly just new girls with one scene.
Corrupted Kingdoms hasn't had any sense of progress or purpose since... ever, it's really just a collection of side quests and new girls to keep subscriber attention. Let's be honest with ourselves here: this game has all the signs of being dropped as soon as ArcGames grows bored or the money dries up.