^
You probably get some news from some random NPC's that the Dragon Knight is restoring the Dragon Knights to help The Divine One in his campaign to stop Damien. I doubt you'll see the two but it's possible that The Divine One is the playable protagonist of Divinity 3 since he's the only one with the power to kill Damien. The name of the series pretty much refers to The Divine One's heritage since he's basically a god and Damien is a demon. It'll make sense to resume the role of The Divine One to fight Damien.
Optionally, you could play some new protagonist who is a paladin of The Divine One (like the protagonist in Beyond Divinity) tasked with battling Damien and The Black Ring. The story could involve your eventual promotion to General of The Divine One's army and in the final battle, you get to Damien with The Divine One and help him fight against Damien. Meanwhile, you have the Dragon Knight and his/her dragons fighting from above.
Damien could have the Beyond Divinity protagonist on his side. I've always wondered what's happened to him/her...
Seriously, having all the protagonists of the series meet in one final battle would be epic.
