As you may have noticed, XSA-156 is due to be released publicly at 12:01am tomorrow (10 November).
I've prepped packages, and before I leave today will set a script to send them to the CBS at 12:01 exactly. Packages should end up in virt6-xen-44-candidate within probably half an hour after that. If something goes wrong, I'll try to have it sorted out when I come in tomorrow morning (usually around 10am UTC).
-George