So.....the Model 3 plus has been moved to over a year from now.
electrek.co
I'm sure that the roadster development is going to come after the Model S plus is complete.
I would have hoped Tesla could work on more than one development at a time, but....."O well" .

Tesla delays new Model S Plaid Plus orders to 'mid-2022' - Electrek
Tesla has delayed new Model S Plaid Plus reservations to “mid-2022” in an update to its online configurator. Last night, Tesla updated its online configurator to change pricing on several models, including a $10,000 price increase on the Model S Plaid Plus. A few hours later, Tesla updated the...

I'm sure that the roadster development is going to come after the Model S plus is complete.
I would have hoped Tesla could work on more than one development at a time, but....."O well" .