More than 12000 players online at the same time?

Considering that there is 2000+ in queue almost all the time that can take up to 3-5 hours to pass through on Icecrown, I was wondering if they're going to increase the amount of people online at the same time on Icecrown? Anyone who knows something about this?

We'd love to, but we can't until we further improve upon the server's stability. It has been increasingly difficult to do so, with each increase in the max population of the realm.