I don't believe that's entirely accurate.
Well, the tax credits federally have ended, but the rest isn't quite right....
Tesla tells Model Y RWD buyers to 'prepare for delivery' - Electrek
Currently P and AWD buyers can place new orders on the website- and (some small number of) those who preordered have gotten emails to confirm March 2020 delivery and select days they are available to accept said delivery (starting March 15)
RWD isn't even available to order online anymore (mirroring it being discontinued on the 3 as well) but some (again not all) folks who had pre-ordered one (who according to the story anyway)
have not gotten any such email at all... but have seen their tesla account car page say "prepare for delivery"- with no specific date or anything though- and could well just be a web glitch.
In fact- the Model Y Ordering FAQ still states LR RWD isn't even scheduled for production right now.
Model Y Ordering FAQ
I do apologize for not noticing you were ONLY interested in offers Tesla themselves were making.... I'd expect them to be low in general because Tesla doesn't really want to resell used cars at all (see also them ending the CPO program)
Model 3 in general has retained
phenomenal resale value-by FAR the lowest 1 year depreciation of any vehicle on the market- because again demand remains higher tyhan supply even for new ones... So Model Y shouldn't really impact that... but you'd probably need to look somewhere other than Tesla themselves to find it.
Tesla Model 3 tops list of cars that hold their value | The Driven