There are two features that are on your roadmap which would transform our own development:

Support the HTML img srcset attribute.

Support background-clip: text.

Is there a way that the support for these could be prioritised?

We will move them up the roadmap and see what we can do.

The Prince pre-release builds now support the img srcset attribute!

If you're taking requests, I've got a book going to print in the next six months that could really use text-wrap: balance. It's not impossible to work around the lack of it using manually inserted line breaks, but it's very error-prone, and I'd just as soon not worry about it if I don't have to.

I'd like to second the request above. If you could move the "text-wrap: balance" item up in your roadmap, I’d really appreciate it.
Thanks!