We will never know what will happen. Maybe it will become obscure and forgotten in the next decade or so then become a true classic in who-know-how-long. Becoming a classic is a tricky thing. Look at how Jane Austen's work was pretty much forgotten for some time.

JSMN is my first obsession that I am sure I won't realize it has many faults when the obsession goes away. JSMN is too objectively good that I think I will still love it even when it gets replaced by my other obsessions.