What if Blizzard launched two sets of Vanilla servers with different rules?
The first 'set' is Blizz/Vanilla like, with population caps, on a PvP server you can play one faction only, all the inconveniences of Vanilla and so on.
The second set of servers had Dynamic Re-spawn, ability to join BG's from anywhere in the world, population cap lifted to +10k, you could play both factions of a PvP server. Lastly, wiliness to listen to the community about other additions/changes?