They dont have a chance against the old gods freed.
they are only using DW because they are chained, once they are unchained, there is no need of DW becauswe they have so much power than him....
All the titans are neccesary to CHAIN the old gods.
ONE titan could wipe all that army.
Would make sense if what happened was that DW kills off the other aspects and then commits suicide in order to free the Old Gods once and for all. DW then the final Aspects dies by impaling himself, darkness covers the world (hence the hour of twilight) and the Old Gods are released, Doomsday has come.
It would be alot cooler though if DW releases the Old Gods and they inturn throw him away (kill) like a cheap hooker.
you under estimate the burning legion and over estimate the old gods...the titans struggling against the elementals most of all
The Old Gods' armies were led by the most powerful elemental lieutenants: Ragnaros the Firelord, Therazane the Stonemother, Al'Akir the Windlord, and Neptulon the Tidehunter. Their chaotic forces raged across the face of the world and clashed with the colossal Titans. Though the elementals were powerful beyond mortal comprehension, their combined forces could not stop the mighty Titans. One by one, the elemental lords fell, and their forces dispersed.