Apple released the Airpods Pro which many people have said are a pretty big improvement over the original Airpods.
MrSpeakers rebranded to Dan Clark Audio and released the new Aeon 2 which has been getting pretty positive reviews
On top of their headphone / amp releases, Focal France purchased their North American distribution back from Audio Plus / Plurison and is now handling all the distribution, shipping and warranty issues themselves
A fair bit of Campfire Audio Drama here and here to go along with the release of the Campfire Audio IO, Campfire Audio Polaris V2, Campfire Audio Andromeda V3 and the special edition Andromeda Black Gold and Solaris.
RAAL-Requisite released the SR1a and this forum happens to have the most traffic’d thread on the internet for it thanks in no small part to @Torq This did not happen in 2019 and has been sent back to 2018 where it belongs.