I don't know, but if a guy designs my first production model and I spend nearly the next 20 years releasing the SAME design over and over again, I think I would refrain from rattling his cage, especially if that same guy in his new startup, already has three distinct models.
Here's my challenge, after all other startups and OEM's put their cars on the road, then we can revisit the "who will survive" question.
I will make this prediction today, first sign that tesla is getting out engineered, Elon will prove his father correct and Elon throws Tesla under the bus.