Tesla didn't just make "The" electric car, they made a charging network better than pretty much anything else out there.
At this point other contenders are simply to late to the game. Tesla fundamentally changed the market and they have established themselves in a way that will be hard for competitors to topple.
After all, when Tesla pushed out the X/S, what was the competition doing? Mostly just retrofitting batteries and engines as cheap as possible on current frames. Tesla made a car that could be a universal car while everyone else was focused on short range secondary commuters.
Now, competition not only has to compete with the fact that Tesla is what people think of when they think "Next green car" they also have to find some way they can be better with a public charging network that is 10 years behind what Tesla currently has.
It isn't enough to push out a car that can go 200 miles on batteries alone anymore. You have to be better than Tesla, and that is a really high bar.
So, the real question is "What's next for tesla" can they continue to be the best in class? Will they be upstaged by the current old guard? Who knows?
One thing is for sure, car companies are going to need to evolve to compete with Tesla's offerings.