Remember Dragonspyre, the grand chasm, when you did the Dragonspyre Past quest? From there you could tell Dragonspyre was a beautiful and amazing world before, with water and green plants. What if you could go back in time to an age before the Dragon Titan? To see Dragonspyre before it fell to ruins? To me, this seems like an amazing idea, and maybe you could do quests for characters that where GHOSTS when you first did Dragonspyre. Wouldn't that be interesting? Well, those are just my thoughts. Feedback would be nice.
No. Time travel never ends well. The Grand Chasm Past was acceptable because we didn't affect anything major, and we had no other option. Altering time on such a scale would cause major paradoxes, and that's never good.