Ive just checked ingame aswell as Microsoft store the new dlc isnt there, PS4 players have it but we dont, So whats going on Dovetail
It's starting to show up in the store. I just bought it, so it should be available already or is about to hit your store soon.
I can't believe it's £19.99 though. Bought the Founders Edition, upgraded it to the final full deluxe edition when it released not long ago and it's still £19.99 even with Gold. :-(