That aint happening. It may one day, but that's years off. The chip shortage is going to last for several years... and there's going to be grab for battery cells/raw materials as more companies ramp up vehicle production. Ford has nearly 200,000 Lightening orders and had only planned on making about 10,000 per year... they are now upping that to between 20,000-40,000... but the math still doesn't add up.
Used cars will continue to maintain their value, especially EVs... especially Teslas. Teslas in part because the markup is at the factory. With inflation, the chip shortage and the grab for raw materials, the factory price isn't going anywhere but up. So, whereas dealer markups may ease on other vehicles, lowering the private market value as a result, Tesla's won't have that massive devaluation given its highly unlikely Tesla will ever lower the price, but rather just keep it the same and let inflation catchup (if they ever do determine they've raised it too much that is... which is unlikely).