Tesla is smart, and I came here to suggest this same thing. When cutting the price by a few thousand dollars saves the customer a few thousand plus $7500, they'll be all over that. Even if it comes down to "We'll sell you a RWD with the space and wiring harness all set up for the front motor, then you hand us a few thousand for the front motor installation after purchase", and could also add that its battery is full LR size but locked down to SR+ until you hand them the unlock cash after purchase.
They will wait until the ink is dry on the new legislation before announcing any of this. I most definitely would expect a TON of cancelled/reinstated orders, were I Tesla.