what if we got a quest that let us go back in time to save malistaire wife like a potion from the present then after that we get a spell that kill the titan and the army and we go back to are time and ds is a peaceful place and good of it all malistaire would be good guy and Sylvia will be alive and thats about it.
It would make the storyline less interesting. You see, Dragonspyre was destroyed. It was because of the Dragon Titan, and if the Dragon Titan was summoned by Malistaire, it could bring back his wife, making the actual plot.