I dont think we can expect the population to continue at this level if we dont continue to market the server using certain tools.
Naturally, people will leave when a new game comes out theyve been waiting for (conservatively a 1-3 months hiatus), get tired out on daoc (usually 2-4 weeks break), real life happens, etc etc. Combine that with others not seeing their friends on for that period and they can take a break too. The problem occurs when they break, come back and get so lost they decide not to return again (weve all done it right? either in this game or another).
Its the age old "whats cheaper, keeping existing customers or obtaining new ones", however i think there should be a little mix with this server.
My advice (all free options):
1. Run posts on relevant forums advertising the game i.e. steam forums/ Wow forums/ DAOC unchained etc etc (i.e. "did you know daoc is still alive and booming? should check it out"
- this will help find "new" players i.e. either brand new or ones that dont know we exist)
2. Run periodic events i.e. weekend/ monthly/ once a year i.e. xmas/ halloween (this will help people stay)
3. Be friendly to other players, run free PL sessions, invite that noob along although they may wipe your group, it may mean they stay playing for 6 months rather than 3. Help lvl that stealther who is having a hard time finding groups, etc. (this will also help people stay)
Also im not saying we need to do this, as i know the devs and everyone has already put in more than enough time for this game/server, im just saying if we want the population not to dwindle, this is what we need to do imo.