We are currently sitting in the middle of the range, I believe that the next big break will set the trend for the next 6-12 months.
For Tesla to succeed and see enormous growth they need to achieve full self-driving, I think they are still a few years away.
The second thing is battery production and having access to the largest EV market which is China. This is coming with the gigafactory being built this year.
Overall I am on innovation so I'm on Tesla , this doesn't mean we can't lose support and test lower :).