According to Classic/TBC streamer Kargoz, content creators have been told to delete their TBC private server content if they don't wanna be removed from the TBC beta list. : r/classicwow
The Burning Crusade Classic release date rumours – Silent Shadows
A Farewell Ode to Excalibur: World of Warcraft Burning Crusade Private Server – The Visualist's Veranda