I'd prefer the JVM/CLR-Stacks fading away alltogether. An exhaustive Toolchain like Java has + a fairly superior IDE like Visual Studio, both targeted especially for the JS-Stack, and everyone wins.
If there is enough desire, every possible language can be ported over to the JS-stack. For me it's contra-productive to have too much languages to choose from.
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How does everyone win by having everything on a stack that is inherently slower and has terrible support for concurrency?
> If there is enough desire, every possible language can be ported over to the JS-stack. For me it's contra-productive to have too much languages to choose from.
Having everything compile to JavaScript doesn't mean there will be fewer languages. It just means that implementing the languages and debugging your code will be significantly more awkward.