i don' think supreme will "die." but i do predict it going the route of stussy within the next 10 years just based on the previous 10 years.
Before you could only get it in one place in NY, LA, and 4 japan stores. Now it's in another NY store, Paris, London, and another Japan store. Which doesn't seem like a lot on the surface, but...
The opening of the online store made Supreme even more accessible, which also wasn't a bad thing at the time because it was still incredibly hard to get things and the store didn't have weekly drops when it first opened, but then...
Production has gone way up.
And Lil Wayne and Justin Bieber started wearing it...and the rest is history.
BTW, LA employees are the nicest Supreme folks I've met so far (NY & Paris dudes...SMDH).