Where is the Blizzard store link tho? the link in the image doesn't work, also blizzard store doens¡t go by gear.blizzard.com anymore, as you can see in
https://i.gyazo.com/edb7455e8e264ea7...bea0769982.png
This is always the case a guy posts something in HD everybody hypes up then a guy comes with an actual screenshot of the beta client and everybody thinks it's fake because it gives 0 info about the expansion or its features; WoD leak was inmediately scrapped by everyone because "the wow client is so easy to hack".
If you see something giving 0 info that's the leak, evertything else will most likely be fake.