What I am hoping for, based on what I would like to exist:
Something more genuine; think older fb (writing on people's walls), snapchat. Facebook/Insta in 2018 is basically a social linkedin - used to showcase yourself as a person. Most people check Insta as a filter for dates.
I think the new generation of social media should focus on smaller groups of friends (5-30), but it should be possible to publish to wider groups. Sounds like google+ circles, but I think snapchat was closer. Short, real snippets from peoples lives.