Besides RxJS, what other libraries or paradigms are pointing the way in front-end development?

Do you think it is feasible to replace redux with RxJS and maybe recompose? It seems it would keep my closer to javascript and first principles of functional reactive programming. What would be the downside of that approach?

Thanks David for a sweet implementation and a very clearly written set of documents in github. You are right at the center of what I want to grok. Here in Boston there was recently a meetup faceoff between redux and ngrx that I found fascinating. I love Redux but the ThunkMiddleware seems better for logging than for async. Dealing with streams of data coming in and streams of user actions seems to be at the heart of things now, more so even than view controllers and components and their associated multimegabyte frameworks. I'd like to be working with a library that does a good job with that and be able to use it to manage my state in React or Angular or just plain old (es6) javascript. I may jump in a little deeper to RxR though I would like a composable state and would like to see RxR stand more alone from React. I am working in the IOT space, so I can be making stuff useful to me as I build a portfolio of skills that can get me a job in tech. At this point I have a stable esp8266 platform running mqtt to a node broker that pipes it out on websockets. Lots of pub/subs coming in and going out with streams of data from sensors & relays and schedules and state from multiple devices. Ah, now to some frontends...