Personally, I wish Elon would take a backward step from Tesla and concentrate on SpaceX. Although there's a massive bonus waiting for him if he meets targets of the Tesla 3 production so I imagine he'll use that to pump money into the BFR project.

Tesla is good, and real competition won't come until 2020.

But his genius could be better focussed elsewhere.

My fear is what happens if he died tomorrow?

Mars is important and can't be left to NASA and the SLS program. Tesla has a full charge and could still continue to innovate for a few years without him.