Aurene is dead, and probably find a way to bring her back seems become a "new problem to solve". Of course the "lich" option is very cheap, it would be funny or "Jokoish", but a poor narrative, going against the direction the plot is following.
But speaking more seriously, the mention of Ascension is not there for nothing. It will certainly be an important component to what comes next.
However I still can not "connect the dots" .. I'll try to put the pieces together based on what I vaguely remember:
It is strongly indicated that Aurene will have to go through the process.
my remaining speculations,
1. is it really necessary for the gods to ascension to function? I tried searching for the quote i mentioned before in Elon Riverlands and did not find it.
2. What is it really necessary for? The question that no one asks is how to replace an Elder Dragon, one thing is to kill one to absorb their powers, another thing is to replace their role in the "All." I do not know if it is on purpose or the fault of the narrative, but lacked it, I believe that this is where the ascension will have a place.
"It's a testament to the folly of the humans and their gods. They say Arah was sacred, but all I see is one big dragon nest."(Rytlock Brimstone)