Idk, too much text to seem real, although if it is, this just got interesting xd
Sasuke makes a jump, draws his sword and streams electricity through it
There is one big flaw with this prediction/fake spoiler.
If Izanami makes the user's light in one eye to fade away forever, then how could Izuna use it?
What I am getting at is this. If they both used this jutsu, logically, they would both be left with one eye each. However, Madara had EMS which must mean Izuna had two eyes at death to be transplanted into Madara.
Maybe he knew how but he didnt use it?, also this is a prediction not a spoiler, he added 583(prediction) too, quite fun to read.