This story is complete. For future reference, if you ever decide to purchase any of my games, I don't put anything out in pieces. Instead one game is one complete narrative.
Sadly, you won't be seeing Oriel again in this game as a dragon, HOWEVER, he does make an appearance in another game of mine, Rememberance and Renewal, though that game's timeline feature's the Worst Ending version, where you lose to the paladin and ranger. He has an effect on the dragon protagonist of that game, and can be seen in one of the endings if you use his power with the main protagonist.