Typescript is a bandaid.

We need improved DOM access for web assembly, followed by a new icon in the URL bar that indicates you're on a "legacy" site if it's using javascript (my vote is for a cute snail emoji)

We should make more bandaids like this, taking over big chunks of the programming world.

Google-affiliated Carbon looks awesome (to fix often-hated C++).

What I like is that they have skin the game (sunk cost of millions LOC of C++ to maintain) to make it highly interopable.