Yes good point, that is why a TLD which recognizes you as a non-profit would not be a good idea. You would probably be just fine with .org regardless of whether a more apt TLD is going to be created.
.org hasn't been restricted to non-profits since forever ago (even when it was the restriction wasn't enforced). It was, until very recently, a TLD supposedly run by a non-profit as part of the Internet infrastructure so that people would expect reasonable pricing, unlike others.
> You would probably be just fine with .org
Similar to gp I built my identity around an .org (though not as long). I certainly won't be fine if Ethos decides to jack the price of my domain to hundreds of dollars per year.