I'm looking forward to having communities here on Steemit. I'm not sure how much they will connect with the trails. My hope has been that active trails will be the basis for some of the communities.
SteemTrail has just started distributing their trail coins again to people managing the individual trails. Each trail curator can do as they want with that distribution. But good, active community builders would use their distribution to reward folks that are active in their trail or to have community events. I'll be doing that with the @foraging-trail, for sure. And with the @gardening-trail, as I get back to that one, too.