Rejoining question SPOILERS

[Erendis]

The First was already Light-heavy, but had fallen into a delicate homeostasis. The Shadowkeeper was supposed to help break that homeostasis and tilt a bit farther towards Light (the path of least resistance, I suppose), which would pull all of the elements to an unnaturally umbral charge and cause it to begin to diffuse into the Source. Striking down the Warriors of Light while triggering a disaster on the Source would have led to a Rejoining. Instead, the Warriors of Light defeated and spared the Shadowkeeper and killed her masters, causing a violent lurch even farther towards the Light.

I do not know if First's Ascians were native to the First, but following this logic, would not the First be tipped even more to light after we killed Emet-Selch?

[Zackneifein]

We killed Emet-Selch by using the corrupted Light aether of the Lightwardens against him.

And it was a lot of it, so it's probable that our act against the Sin Eater and the disappearand of the Lightwardens Light aether restored the balance between Light and Dark enough to prevent a Rejoining, Emet-Selch death or not. But the First is, even now, in a preocupying state, just not as much as before.

It's Ryne and Eden that will restore the balance between Light and Dark, and all other elements with a more durable effect.

[Anonymoose]

It might also help to remember that the story Mitron and Loghrif told the Shadowkeeper directly contradicts the story Elidibus told Ardbert in some ways. (Not the least of which being that the Shadowkeeper was told that, because they had failed to save their world from the Flood of Darkness, the First was doomed to suffer a Flood of Light no matter what because the universe likes balance. Rejoining the First instead of letting it fall to the Flood was supposed to be redemption.)

[Iscah]

It might also help to remember that the story Mitron and Loghrif told the Shadowkeeper directly contradicts the story Elidibus told Ardbert in some ways.

I assume Elidibus's story is "version 2" when the situation changed from carefully setting up both worlds for a Rejoining to "the First just hit flood state and the Source isn't ready, but maybe I can salvage this if I move quickly enough and get these guys to do the dirty work".

[Rannie]

Ryne Eden and our drugged up versions of the primals that we're summoning and killing =p