At this point I'd _rejoice_ if someone could offer a credible alternative to Javascript for web (and other browser-based/cross-platform mobile) dev. Google tried and utterly failed with Dart; Microsoft embraced JS via Typescript (extend and extinguish, sure, whatever; TS is fantastic); Facebook embraced JS via React (and React Native on mobile, though they've since pulled back a bit from that...); and Apple is predictably absent from the room.

There's pretty much no one left in the conversation who could credibly move us past an endless JS-only future of progressively-more-TS-like ES20XXs at this point...