The pdk is missing Zig which is, for many developers, considerably the best for wasm target. It's as fast as Rust (from benchmark I saw, Rust is fastest), though Zig's binary size is as small as AssemblyScript's. Rust's binary size is considerably in a range of middle to large, mostly middle.
It would be nice if there's an official wasm benchmark of source languages, showing speed and binary size comparison.