The best example that I've studied (from the outside / as an outsider) of a company disrupting an industry, and then BEING their own disruptor, is Netflix. They disrupted the retail DVD / Video cassette rental market with DVD-by-mail, and then about 8 years later decided that video streaming was going to disrupt DVD-by-mail, and that they were going to be the ones to do it. It's interesting to me how large of a role that their customer base played in how Netflix went about that disruption.
Actually, by "best", I really mean "only" - I can't think of another example of a company that put an established industry out of business, and then turned around and put it's own product/business model out of business (well - they're trying), with the next disruption.
The PC industry doesn't count, even if the processors are changing specs every year or two, and the OS running on the hardware is changing every year or 3. The business model isn't being invalidated each year or two, even if the products do change.
It is intensely difficult to be that innovator, and in Tesla's case, what will the incentive be? If Tesla is really successful, and becomes the #1 seller of BEV vehicles, in a world in which BEVs have put the ICE industry into a niche / collector market, I see that as fulfillment of Tesla's mission. At that point, the new Tesla mission becomes something very much like today's Auto behemoths - make good cars, generate massive profits, and return cash to shareholders. I think that's a completely fine mission and evolution for Tesla, and I doubt it'll actually be that simple, but I don't see the underpinnings in the culture that drives to victory over all others and for all time that would be needed. Also - I expect that Elon is long gone from daily operations of the company, with only occasional input as a major shareholder.
Now what MIGHT happen is some new technology comes along that can be productionalized, and that is so much better at doing what a BEV does, it replaces batteries as the storage medium for electricity. Maybe it's a 200 kw capacitor that can be charged and discharged instantly (for some reasonable approximation of instantly), and for lower prices than the battery, and with more capacity. That sounds like something Tesla adopts into the product line and uses - not something that disrupts the industry.