Merrari thanks for all the info and your patience. I understand that Talos cannot die but can be weakned by lack belief aka oblivion. But why would Ehlnofey(Altmer) want Lorkhan back as Lorkhan is the reason for their mortality from the start?
Would Lorkhan having back the mantle going create a disruption in Wheel of the Convention for elves to ascend?
They are not going to get Lorkhan back, the removal of Talos from the pantheon of the worshiped divines does not mean Lorkhan will take his place.
The Thalmor, a political faction of the Altmer, are trying to end linear time and destroy the world in order to return to the endless possibility that was before.
The Aedra created the world when Lorkhan convinced (or tricked) them to do so.
They poured a lot of themselves into this project. Some were dissolved forever and some, the strongest, became eternally bound to it.
The elves believe Lorkhan is a trickster. They believe that they are what is left of divine beings who were dissolved into the Mundus, to create it.
They seek to return to this divine state.
The Thalmor are trying to do so by destroying linear time, so they can go back to the Dawn.
Lorkhan is a dead god, but his shade(s) still walk the world as he dreams.
The life story of Tiber, Zurin and a few others so closely mimicked the story of creation that they became Talos.
You can see Talos as a mirror-brother of Lorkhan. He fortifies creation by existing, by repeating the pattern.