My wild guess, let me know if this make sense...
Seems most of today's pushouts are with Black interior and today also some folks with white interior received their VINs.
Until yesterday White interior with 1/13 - 1/55 OD are waiting where as 1/18 OD black interior are getting VNI's.
Changing to White interior may improve the date
there's some members in here with white interior that are getting dates pushed back today as well