With Dawk's mom passing recently, no telling how that affected the AMP/Bianca plans, as she and Tez seem to be pretty close with him. They may be with him for all we know.
That said, I don't like Bianca not doing ANYTHING in Memphis and not having much to do heading into Mania. At this point, best case scenario is two multiperson tag matches to squash all the black wrasslers into a couple of unimportant low build matches (three when you count the New Day/Ladder Match) and hope for something post Mania. No matter how they do it, none of them have a strong and hot build going into the biggest show of the year, despite all the protests about them being fine because they had them in matches all year.
Which is a problem in and of itself but the writing is on the wall.