They are likely waiting for the vacancy bid to go through and figure out how many upgrades they'll have later this year. The bid is supposed to run July 2nd. If enough upgrade, they might start convening the CRB to hand out CJOs to new hire FOs again. This is just my guess and I haven't heard anything. For reference, when I was hired last year, I waited 2 weeks for my CRB before being offered a class date. It isn't supposed to be an extension of the interview - just a review period for your application to make sure nothing is out of the ordinary.

Definitely have a back up plan in the event that they hold you guys in limbo for a while. Get somewhere and start building 121 hours.