I waited a long time and occasionally checked to see if anything had changed, but it was clear that Pine64 had again taken the approach of "build it and they will come" hoping for other people to clean up the mess and make the phone usable. And to be fair, they were up front about this, to some degree, but they built it and nobody really came. The truth is it's just too damn hard for random people to fix all of the software issues on a device like this, especially when it's basically not usable as a daily driver yet. Working on a device like this is a full-time job, and you can't really replace that full-time job with 20 hobbyist weekends stacked in a trenchcoat. I did realize this when I bought one, with full intent to be one of those hobbyists spending weekends on it, but at least to me, it was simply too broken.
So I think the PinePhone experiment is a failure. Then there's the Librem 5, which I presume is at least more stable and usable, but it's at a price that is less easy to stomach.
I think until the software is ready and a market is proven, the best route for Linux phones is going to be by taking Android phone parts and trying to make it run regular Linux, a la libhybris. It may not really work out either, but it does seem like it is a path of significantly less resistance, where the software can be worked on with solid hardware and hopefully solid enough drivers to build on.
There are some folks working on this angle, too. The latest I've seen is the Liberux NEXX, no idea how it's going, not affiliated in any way.