In the case of the WOW Wrath Of The Lich King Classic release date, Blizzard might have spilled the beans on the expansions official website, which showed a September 26 launch.
However, the date is completely gone now, replaced by the usual in 2022 from before.
The short article leans into the idea that the update might have been a mistake from Blizzard, but no one can really say at this time besides the company. Regardless, its not a far-fetched date. With 2022 getting closer to the latter half of the year, somewhere within the nook of September and November seems likely.
When the game comes out, you will be able to buy cheap WOW Classic WotLK Gold at xtmmo.net, were selling in-game services for years, very profinessal.