The S and X will still be sold because the extra 55k isn't that much for wealthy customers, and it would give the vehicle more range, acceleration, spaciousness, luxury features, access to more software, etc. Consider the S has the acceleration of a multimillion dollar ICE, but it's an upright sedan with 5 seats, which shows the power of BEVs and electric motors.
My understanding is that many loyal Tesla Model S buyers are sad because of lack of updates and new premium features, trims, etc.
I'm not an EV owner, but range and acceleration after some point don't matter much.
Zero of all the Tesla owners I know bought it for any of those features.
The primary reason I'm looking at a performance model S is for the speed, I am a simple man XD