We've had some requests for WOFF2 on DocRaptor, and whilst it's still in Candidate Recommendation status, it seems to largely be stable, and is implemented in browsers around Right Now. Fingers crossed for an 11.1 or 12 if it's not a big undertaking!

Relevant MDN and canius support.

Edited 8 Dec 2016 by joelmeador

I'll add it to the roadmap.

Prince latest builds now include support for WOFF2 fonts!

Nice.