It won't, and shouldn't. Wasm meets very few of it's goals, and is nowhere near any native speeds under real world workloads. Even speedups with SIMD ar hindered, and the entire design and implementation of it in the clang/llvm compiler is very experimental.

Go work with wasm in the browser, you will pull your hair out at the fact emscripten is still the most used tool. It's all very hackey and if something breaks, you wont fix it.

WASM adoption is not something everyone agrees is a great thing in the context of physical CPUs.

100% this. Cross-platform binaries that "just work" everywhere in a hardware agnostic manner is going to be huge.

Browser-based games and real-time 3D applications are the one's I'm most excited about, personally but that may be because I'm developing a WASM startup in this space.