So I went looking for Pharo, which brings fascinating introspective tooling to Smalltalk, only to find that the author is biased towards 'any' high level features interoperating with C-like languages. And my list of interesting languages would look the same way, nobody would be able to see why I didn't put 'their' language on there.
Which is why I got excited for the awesome list thing. One person can't curate everything. You need a community of people invested in differentiating software offerings to the point where anybody can look at it and see what makes it interesting.