WebAssembly doesn't intend to replace jQuery, D8, or CSS. However, we definitely plan to enable efficient DOM access. Doing so requires supporting some sort of native Garbage Collection, as well as the concept of opaque reference types. See more here: https://github.com/WebAssembly/design/blob/master/GC.md

Any specific plans for python support?

Python is just another language VM. C Python should work just fine in WebAssembly, and bridging the APIs to the web (e.g. filesystem, etc) is already possible through Emscripten.

We don't plan to do things for WebAssembly, we plan to make WebAssembly powerful enough that anyone can run their language VM :-)

I think what they meant is that they could use python without having to also ship the implementation like CPython. I mean, that thing is huge. How is it feasible to serve 10mb for a website?

Yes, thats what I meant.

That's awesome and means alongside ObjectiveC, I effectively waited out deep diving on 2 (soon to be) formerly popular programming languages. I get to use my preferred language, Python, for even more.

Gotcha!

The article specifically mentions first class DOM manipulation as one of the next goals. That's been part of the plan from the start. Maybe you're thinking of web workers?

It will eventually, iirc