The price delta for SR to LR on the model 3 is like $9k last I looked.
But the MYAWD is "closer" to the MYLR in both drivetrain (still has two motors), and range (not as big a gap)
Given the $5k delta from MYLR to MYP, I'd be betting on a MYAWD at an equal spread. So $58k, $63k and $68k - not because that's the right value proposition, but because it's simple and right for their likely-low initial ability to build MYAWDs
Speculation is fun. We'lll get much more info soon (and I can gloat or dine on some nice crow as appropriate)