What will happen to WotLK servers when Lordaeron gets released?
Deathwing and Ragnaros, they both have around 3K players in day time, and around 2K players at night. But is it going to stay that way when Lordaeron gets released? I highly doubt that. I'm afraid a high amount of WotLK players will go to Lordaeron and we'll have way less people for our realms.
What I suggest is, when Lordaeron gets released, combine current two servers and make one server plus Lordaeron. As far as I know, both Ragnaros and Deathwing have the same exp/gold rates, so it shouldn't be a problem to combine those.