It's been confirmed that the apocalypse would come in advance as per mirror Roselle stated.

And that Son Of Chaos was put into "comatose" state thanks to Roselle's, Amon's, and Adam's "effort"

But,

Will Klein's dealing-promise with the genie remain valid?

-The one that neccesited Klein to send the Genie back to the cosmos before year 1368 of the current epoch, else Klein would perish/split as the penalty.