1. - Emperor
I wish Emperor and Dream visitors are separated. For now, we have dream visitors as illusions and also some unexplained abominations during the final battle. They should be warriors (and you should be able to customize one for your character) enslaved and kidnapped by Emperor, you should be able to romance them and free them along with Orpheus.


2. - Companions and relationships

The romance should be based ONLY on your relationship level and dialogue options, maybe some of your choices during the journey - that includes completing personal quests. It SHOULD NOT be based on the certain long rests and certain events which block any romance options if you missed them. You should be able to develop romance anytime during long rests.