A compiled list of what is sold out or no longer available on the US Webstore, compiled by a reader here. A lot of bits and upgrades here.
via a reader on Faeit 212
This list is bigger than the last, more sold out items, all in US Webstore.
Chaos Space Marines:
Word Bearer Shoulder Pads
Black Legion Shoulder Pads
Vehicle Upgrades
Black Legion Supplement
https://www.games-workshop.com/en-US/Black-Legion-Codex-Chaos-Space-Marines-Supplement
Astra Militarum:
https://www.games-workshop.com/en-US/Black-Legion-Codex-Chaos-Space-Marines-Supplement
Astra Militarum:
Catachan Demolitions Team
Valhallans with Special Weapons
https://www.games-workshop.com/en-US/Valhallans-with-Assault-Weapons
https://www.games-workshop.com/en-US/Valhallans-with-Assault-Weapons
Voystroyan Commander w/Power Sword
Catachan Heavy Weapon Team
Dark Eldar:
Wych Cult Shardstorm
Inquisition:
Daemonhost 2
Orks:
Codex: Orks
https://www.games-workshop.com/en-US/Codex-Orks-EN
Deff Dread Mob
https://www.games-workshop.com/en-US/Deff-Dread-Mob
https://www.games-workshop.com/en-US/Codex-Orks-EN
Deff Dread Mob
https://www.games-workshop.com/en-US/Deff-Dread-Mob
Space Marine:
Space Marine Bike
Scout Bike
Space Marine Lightning Claws
https://www.games-workshop.com/en-US/Space-Marine-Lightning-Claws
https://www.games-workshop.com/en-US/Space-Marine-Lightning-Claws
It seems a lot of bits and upgrades are going away. The box set for Dark Eldar is understandable. Though, a lot of Catachan are going too, as last time I noted the Catachan box set was Sold Out.