I had booked the RWD and later converted to AWD in July when the price dropped $3000. We don't do road trips much and the max we can do locally in one day is 120miles. So if the extra range helps you to remove a charging stop from your road trip, then the RWD is definitely worth waiting for. Otherwise, if you need a car now(this was our case since we had returned our lease car) and don't mind the quick acceleration, just go with the AWD. You will be paying more for the dual motor, but you will get at least some of it back on resale/trade-in.
Remember, the quick acceleration of the AWD, you get to enjoy it every time you drive it, but you get to use the extra range(RWD) only when you do long road trips.
If you are coming from an ICE car, you will still find the RWD acceleration as very quick. But the way AWD pulls is different.