What I'd like to see is a model where you a federated network of moderated groups. Something like Discord except more micro-blog than chat and where you can see popular posts of sister/brother servers, very popular posts on cousin servers and so-forth. Basically, a filter-tree keeping things reasonable and creating groups of folks with some relation to each other.

Decentralised group chat communication seems like it would work very well as the future model of social networking. Content online could spread organically instead of the surveillance panopticon telling us exactly what we want to hear.