Initially, probably not,but economies of scale will kick in and bring prices down.After all, Porsche don,t seem to have put a foot wrong in the last 25 years. They will make it work.I believe that they are the most profitable car company in the world.
They are also part of VW so have relatives like Bentley and Lamborghini who would be very keen to keep some form of internal combustion engines... especially Lamborghini..can you imagine one of them sounding like a hoover..no,nor me.