Hmm that's funny. I ordered my RWD in Jan 2020 and received this text today:
Tesla Update - Our apologies, the previous text sent earlier today about your Model Y Long Range Rear Wheel Drive order was sent in error. Please disregard the timing previously provided, we do not have a timing estimate for Model Y Long Range Rear Wheel Drive vehicles at this time.
Of course I didn't receive any other text but I read it as they are "trying".