Advancing narrative?!

And I 2

Have you heard about how Vect is actually the crown prince of Lyanden and the rightful king of the craftworlders?

Man I'm sure glad I got out of 40k when I did.

the female isn't sylandri, read again, cawl doesn't recognise the two figures and veilwalker appears next to cawl while he's watching them

Both Eldanesh and Ulthanesh are male though.

Other female possibilities are Iyanna or Malys.

>Black Templars allowing a Xeno within their ranks

Literally what

They're following Celestine's lead. Also if I recall correctly, the Eldar don't so much join them as pop out of nowhere when they're about to be attacked by Black Legion forces.

This event is retaking where things where left after the eye of terror campaign ended right?

Yes.

my money would be on something similar to the age of sigmarines event, with everyone fighting over a generic sector, split into regions