With Geforce NOW and Edge, World of Warcraft can also be played on Xbox consoles.
Only time will tell if and when there will be a native way to play World of Warcraft on the Xbox. The topic is not completely off the table at Blizzard Entertainment anyway, as it is something that is discussed internally time and again.
But until then, you can still play the online MMO on your Xbox console via a detour.
The solution is the Edge browser. In conjunction with GeForce NOW, you can also stream the game and many other PC games to the console via the Edge app.