In the next 10 years (probably closer to 5), Tesla will either:
a) go out of business.
b) be acquired by another car company and done away with so that their own electric cars can be distributed.
Everyone else is about to surpass Tesla with their electric cars... companies who know how to budget, assemble and distribute properly.
What makes the Tesla an Ironic car is that it has motivated other car makers to get in the game. That said, it will be probably Tesla who will be manufacturing the batteries for most other car makes in the future. From the very beginning, Elon Musk stated that he would be glad when other car makers followed his lead and start to build quality EV's too.