This is very interesting information. Great to see the thread being kept alive 

Latest development update (05/12/2019)

Artem pushed his latest changes to gitlab, current development now at
https://gitlab.crownplatform.com/crown/crown-core/commits/234-simple-nf-token-protocol-registration-2
* NFT Core — 100%
* NFT Registration — 100%
* NFT Protocols Registration — 90%
* Bitcore NFT support for web-development — 40%

Ashot also pushed large amounts of changes, which can be found here
https://gitlab.crownplatform.com/crown/crown-core/commit/d796755e8eaa65aaad2643ff2b29c296265b9fbf

Trezor update
Still no release from Trezor, awaiting new firmware.

Non-Mandatory release
Seed nodes are being updated and a small release will follow. This is a non-mandatory release but is recommended
to improve sync times.