Would love to see this, as someone who has been heavily using Live since 2006 and is finally getting into proper coding in middle-age. Having a way to augment Live in a text-based coding format would be greatly welcome.

While I'm not holding my breath, Ableton the company are transitioning into a steward-ownership model in which the stewards will have decision rights over the company. So I have hope that it will continue to grow in ways that are less affected by market considerations and that are a little more opinionated and specialized. Not to mention that Ableton own Cycling 74 (creators of Max/MSP).

So it's not out of the realm of possibility.

you can use Javascript with Max. It's a bit unwielding in its handling of multi-JS-file projects, but it can be done.

Not everything in Max is exposed to your code, but you really can do a lot from the JS side of things.