No, there's actually a fair bit of activity around it, if you read through the comments in the pull request it has a fair bit of activity.

They recently got a fair bit of interest on the mailing list https://goo.gl/kvNwC1 and raised some money for it as well https://github.com/NixOS/nixpkgs/pull/9250#issuecomment-3208....

I'm pretty sure I read somewhere that it's planned to go in the next release.