What if we vote for Vannila Servers?

There is too many players asking for Pre-tbc servers unpleasantly. If we could have a referendum to let us vote if we want classic servers, I don't see why not have players to vote when ever blizzard can put Vanilla servers or not Why not let us players decide by voting as a community to have vanilla?

Pro's

Seeing a Returning Classic Players
We can decide if we want it
Good for nostalgic players
NO FLYING MOUNTS
Better world pvp(cross realm kinda... sort that maybe)
Unique Classes
Less Private vanilla Servers

Con's

More hard to play
More grinding
Class Balance
Irl Gender faction inbalance(specaily horde)

Same goes for TBC ones if you want to but we will see if lots of players return for it