Things are looking good at the moment. I'm sure when the time comes for SMP5 then we will get it. Right now, enjoy the ride!
Don't worry, working hard on it also: http://empireminecraft.com/threads/initial-results-of-the-2011-community-survey.2515/
We have lots of lots, we just have to many new people in the severs (Mainly SMP3 it seems) and to many people who never come back on.