Blizzard, for its part, is holding to its stance that they'll release new realms when overall population requires it -- but until then, the best you're going to get is low population recommended realms. Vaneras thoroughly explains the situation for us: the fact that people enjoy playing on brand new realms just isn't a compelling reason for Blizzard to create new realms when existing realms have plenty of room to grow.
But what's the solution? Vaneras tell us that merging existing low-population servers in order to be able to open new realms isn't going to happen. (And I can understand why -- merging realms and then rolling out new realms is a lot of work by Blizzard's tech team, and essentially serves no purpose.) Vaneras suggests that you could get yourself organized and ready for new guilds on new realms, but that's probably little comfort. Some posters suggest a rerollers' realm of sorts -- a realm that resets every few months to offer players wanting an authentic rerolling experience a chance to race to 70 on a regular basis, without the need for any new realms. But what do you think? Do we need new realms? Is the fun of playing on a new realm enough of a reason for Blizzard to regularly deploy them -- even if they'll wind up ghost towns down the road, when players abandon them for other fresh realms?