I think the ending was a good cliff hanger, I believe D3 will be an amazing game as the story unfolds. It would be nice to see in D3, somehow the Slayer Knight gets free, but this time you start the game with your tower and dragon form, would make exploring, storage, and powering up more at hand early on. Having Talana's spirit actually mainfest itself this time would be nice as well as more Patriarch action. I think they intended the game to end on this note, it's not bad, it's a the middle man, kind of like Empire Strikes Back was.
Great job on a good game.