Kotlin is doing fine, but its growth has slowed a lot and the team is pivoting rapidly to multiplatform to try forge a niche that isn't just "better Java". That pivot isn't smooth because most Kotlin code—even the standard library—depends heavily on the JVM and Java libraries.

I didn't mean "fate" to imply that Kotlin as a language is dying, just that their position as "better Java" is no longer tenable and they've had to shift strategy dramatically to try to stay relevant. That's what I'm afraid will happen to Deno as Node catches up.