https://www.forbes.com/sites/jonathanocallaghan/2019/01/10/can-elon-musk-actually-make-a-flying-tesla-car/#3419ed7074b4
(interesting url) and nowhere did he directly imply that the next roadster would be able to hover. The closest one could reasonably infer from his statement, imo, is that it would have little gas thrusters. You know, like they put on space ships?
The whole story is bullshit.