This sounds more like the premise for a TV or graphic novel series rather than a specific story. What is the specific challenge that the professor needs to overcome - grieving her mother's death?

"An atheist religious studies professor grieving the death of her mother is visited by a fatally wounded woman who falls into a coma after granting her god-like powers."

"atheist, religious-studies professor" : Protagonist, yes, but doesn't need to be this descriptive.

"visited" : too vague.
"god-like powers" : again, too vague.

"falls into Coma" / "Granting god like powers" Inciting-Incident is not clear!

Forget the Ending, but How and Where the story is headed is needed, to invoke any interest.
Some light can be thrown on the Stakes / Conflict...
Coz, after i read it, i was like, "...So?"