I did finally get a VIN today and SMS notice. The delivery date narrowed to 4/16-4/20. Great news since I thought 7-seaters might take longer.
2021 Model Y LR AWD Pearl White, Black 7 seat interior, 19 inch, no Tow Hitch, FSD, ordered March 8th, got vin on April 15, ETA 4/16-4/20