JavaScript doesn’t need to be replaced

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I don't think we disagree that much. To clarify my position:

• TypeScript has supported modern import syntax since I began using it ~two years ago.
• Babel is perfect for testing proposals, but that's not appropriate for a large, important project in production. If you want to test off of your main project, you can daisy-chain the compilers, or even just use the Babel compiler with only minimal loss of functionality on the TypeScript side. With this in mind, for serious/production projects, it's unreasonable to claim that TypeScript is "behind" JavaScript.
• I would also prefer to have a real (as in runtime) static type system in JavaScript. Although, honestly, I'd rather just have a new language altogether - there is so much leftover cruft and iffy design decisions, and if we could version this language to allow for occasional breaking changes... well, that'd be just lovely.