In answer to your request for suggestions as to what should our new "park" be used for, some of your answers were great.
I have one suggestion that I've talked to others about and they liked it: a decent-sized water fountain, surrounded by holly berry bushes so people cannot get too close to the basin and throw paper, etc., into it. Landscaped with a few flower beds - not too large - but leaving enough room around to function in some of the activities you suggest. The high school bands each a month - choirs the same.
It's going to be interesting to read what other ideas will be coming in.