I'd be more "worried" to see JS/TS gradually disappear in favor of other languages that compile to wasm. If that happens, it won't matter which JS flavor or sup

I'd be more "worried" to see JS/TS gradually disappear in favor of other languages that compile to wasm. If that happens, it won't matter which JS flavor or superset you're using. There's massive inertia behind JS though, so that'll take a while. I put "worried" in quotes because I'm actually looking forward to using other languages. TS is a fantastic addition, but there's only so much it can do on top of JS, despite the great improvements in ES2015+. For example, I wish TS had a decent enum system with associated values and pattern matching (like Swift for example), but that's unlikely to happen.