In the past Blizz gave a small hint that there will be Classic WoW.
Since then we got no official information.

Ppl start to speculate over time, imagine unreal things, build hypothesis on them, but it's all made of assumptions.

Some agree, some don't, and they start to "fight" each other, because of their beliefs, their assumptions.

Different parties emerge that advertise their thoughts, imaginations, all based on just a small piece of information, that was given in the past.
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Sounds familiar. It's the same pattern all the time. Most ppl just have the need for this by design.