I think contract is already signed. Musk will receive a massive amount of money but just if he delivers, and one of the conditions of the contract if for the market cap of the company to grow 300% I think so!
check my latest post on cryptocurrency: https://steemit.com/bitcoin/@williamcrypt97/why-i-love-these-4-projects-and-you-should-too
RE: Tesla Proposing $2.6 Billion Pay To Elon Musk @senseicat