Comment by ChubbyGlasses

Swift and Carbon both seem like very strong contenders in this space. Swift is already a really strong language albeit a little too tied to Apple’s ecosystem. This along with the ownership manifesto slated for Swift 6 (and C++ interop) should make it easier to use it everywhere. In particular, I see a lot of value for tooling (eg JS code bundlers and such) that are rewritten in “thinner” languages for performance needs without sacrificing developer productivity.