Do something like they do is WW2OL a Free weekend.
The Welcome Back Soldier (WBS) program in World War II Online is a periodic promotional event hosted
by Cornered Rat Software that temporarily unlocks full, premium-tier game access for returning veterans,
inactive subscribers, and/or free-to-play accounts.
One would think HT still has all the e-mail address of passed players..........
Give them a free weekend to come back and see old friends. I think the hardest part of this would be we would
have to be on our best behavior to get them to stay around.
Even if it's get only a few to resubscribe that would still help.