Hmm. Early
So, Aizen is talking to Ywhach. Epic level, 9/10
-Where did Lille go? Probably dead, oh well. He will be missed. X-Axis to X-Axis, Flamingos to Flamingos and so on, yadda yadda yadda. Who cares?
Ryuken has a silver arrow, for some reason. I'm guessing it's a somehow meant to turn the Aushwhalen back on Yhwach. Regarding how it's formed: Silver clot in the heart: What? That's not how it worked before. Something like that would kill Katagiri immediately, but she lasted for a few weekss (in a coma). Also Gerard doesn't have a heart anymore, so what?
Ywhach gets bored and attacks Aizen. This being AIZEN, it does nothing. Epic level, 13/10.
Aizen is no longer in the chair. Epic level, ∞/10
Ichigo and renji attack Ywhach. for some reason, Renji has forgotten the word Bankai, again. Guess how it goes.
Let's see if Ichigo can defeat Yhwach with his new, reformed ban... Oh, it's broken again. That's nice.
According to my Almighty: Ichigo and Renji aren't there. Aizen is using Kyouka Suigetsu to distract Yhwach. Just look; The instant Ichigo shows up, Yhwach diverts his attention entirely from Aizen, who literally just said he had the means to stop him, and Aizen is no longer seen in the chapter. Methinks his majesty's ability to see everything is beaten by Kyouka Suigetsu.
That also explains why Ichigo's Bankai is suddenly more durable: It's not. The illusion is just showing a less damaged sword. Also the chapter name: The Two Sided World End. If there's Ichigo, Aizen and Yhwach, then that's three sides. If it's just Aizen and Yhwach, then that's two sides as the title implies.
Last and most importantly, Aizen described Chair-Sama as "That infernal chair". Have we been wrong all along? Maybe Chair-Sama was not the Seat of the Soul King after all?