Opal is actually pretty nice and usable as a JS transpiler already. I suspect they'll be targeting WASM at some point. I do think however the current trend is

Opal is actually pretty nice and usable as a JS transpiler already. I suspect they'll be targeting WASM at some point. I do think however the current trend is OCaml / Haskell influenced languages like Elm, Purescript, Reason, etc. WASM is only going to make them better. The king is dead, long live the king!