If Auriel was an elf who ascended and, apparently, in this case, became part of and/or mantled Aka, weren't the selectives restoring Aka to his original state?

Auri-El was like the very first Aldmer king, the one who was the Et'Ada of time before Lorkhan's trick-gift. Through death he rose back into godhood. He didn't mantled anyone, he WAS the only one at the time. If you mean the Marukhait selectives then I'm not sure why or how they would reach back to the genesis of the world to fix something in perfect condition that they intentionally brake in the future. At least that's how I see it, could be wrong.

So would that mean that until Auriel's death, there was no time god?