Success, entertainment, thrills and excitement will bring back most of the missing long-term fans, and take the attendance up around the 2000 mark. After that it gets hard. A dozen new supporters every match - a very ambitious target for a small town team - increases the attendance by less than 200 in a year. A long term strategy is needed, along with match by match efforts.
A child in for free with every adult, a turnstile set up for such, could be a worthwhile endeavour. There could be kids who encourage a parent along, and parents who encourage a child along. And every new customer is a valuable resource to the club, and should be treated as such. Seven new kids will one day, as adults, be worth at least