Hello,
first off let me start by saying this is just a suggestion and should not at all be interpreted as a 'must happen' sort of thing. I just think that it would be really nice for the players who can only play mostly on the weekend during peek hours.
I have a level 47 warlock and a lower level warrior that I play on when my warlock is getting camped. Most of my played time is gathered on the weekend and most of the time since STV I have spent getting camped by horde. I am not complaining about getting camped because frankly I love the world PvP. But the mass amount of players results in an insane amount of PvP to the point where it takes me two weekends worth of played time to gain one level.
So my suggestion to help played like myself who have limited time to play is double exp weekends. I don't know if it's possible or not but I think it would help players like myself to level a little bit faster so I can get back to the endgame I used to play. I understand that it would take away from the 100% blizzlike feel but with double the amount of people in a server as the original vanilla servers back in 2004, I think 2x exp will help people move out of the pvp intensive areas like STV and Tanaris a little bit faster.
Thanks a lot for reading.