In the end I have to go with this hypothesis (and how a strong defender of the originality of BG3), but after I watched the end of DOS 2, I have, with utmost difficulty, say this:
(end of divinity 2)
Tarquin and Malady.
In all the endings the necromancer stats that he's interested into a new plan of existence, yeo plane of existence, full with mind eaters entities, and Malady is a demon who can travel between planes of existence. Furthermore in some endings the Lizard race comes out strong and they can use dragons, something that reminds me that the Gynthaki ar antropomorphic reptilians that ride dragons, so they can be a future evolution of the lizard people of Rivellion
