One of the latest developments is that Jordan Peterson, a famous conservative professor from Canada, is launching his own social network. Called Thinkspot, it will "only ban people if ordered to do so by a US court." It will also have an upvote/downvote system that sounds similar to Reddit, where things that get too many downvotes will be hidden unless you click them.
What makes this different from other social networks so far I think is that (1) their downvotes system might keep actual Nazis off the platform (Gab has some great ideas but there's too much talk of shekels there for normies) and (2) Jordan Peterson is fairly famous in conservative circles.
The downside IMHO is that the name "Thinkspot" makes it sound like it's going to be pretty similar to Minds.com. Social media is not just about discussion, in fact it's mostly not about discussions. So even with Peterson's backing I don't think this is something to take on Facebook, Youtube et al.