A. It was a joke.

B. What about Scala? Would you say Scala is a "good fit" for people leaving Java because it's also built on top of the JVM? Or would it be a "bad fit" because the idioms and functional-nature of Scala are vastly different than Java? Or how about Kotlin?

I'm not thinking about "successor" in terms of "Java-specific" design patterns. I'm thinking successor in terms of - can Rust, with concurrency as a first-class-citizen and C-like perf with a safer programming model, replace Java for many of the "higher-level" applications that would've typically been written in Java?