I've read the roadmap for matrix and I gotta say that it sounds very impressive. If everything on that roadmap goes according to plan (and I know that that's often not the case) then I really think that this could be the future of internet communication in techy/libre/privacy coummunities and maybe even maybe ordinary non tech-inclined people too. it seems that their eventual plans for the matrix protocol go pretty far beyond being for just chat rooms and instead it sounds like matrix is gonna sort of become a hybrid chat room, forum, micro blogging, content aggregator sort of thing. they're already taking the first step towards expanding from just linear chat with that experimental "threading" feature that element has as opt in. it looks like once all the kinks get worked out of that their next plan is to start working on a decentralized curation system using emoji-reactions to form a user-defined "web of trust" kind of rating system for rooms.
So yeah I'm pretty excited. I think it's already a pretty worthy replacement for irc in most cases, and it's been improving over the past few years.