I think we will find out what the future holds for the dragons and dragon knights in Project E aka Divinity 3. My guess is the Dragon Knight from the previous game will have the task of restoring the dragon knights; bringing worthy humans before the Patriarch for him to turn them into Dragon knights. Whether this is explained in the story or if you (as the playable character) helps the DK as part of your campaign against Damian or not remains a mystery until more info is released.
