The dev who released official builds no longer has the device, and one of the rules of PE is that ROMs can only be released as official builds if devs have tested it themselves on the device. As a result, Chris continues to release unofficial builds. The discussion about the ROM is on Telegram.
Wonder if there are alternative way to have a forum type discussion where everyone can read and catch up with development on the ROM. Telegram is a chat which if I join will not see all previous posts on discussion about this rom and it's problems and it's features and so on. Plus, I really do not like Telegram. Installed and removed it like more than 5 times already.
Anyway, thanks for the reply and hope someday we'll see an official PE+ 13 thread here. Until then, I'll stick to my current PE10. Or maybe try PixelOS 13.