I don't think they will simply because Teslas core demo could care less about motorsport. I mean Formula E is kind of a ridiculous concept regardless. As the Green people calling for the demise of motorsports and killing of combustion are not racing fans, they're not interested in the sustainability of the sport nor will they become interested in the need for terminal speed.
Who will the fans be? Certainly not fans of traditional motorsport, and certainly not those who forced it upon the world???