OCaml? Someone other than Jane Street is using OCaml?
I think the Reason syntax is picking up a lot of steam these days, especially in areas where React is used (web frontends and ReactNative apps). You can see some of the companies using it here https://reasonml.github.io
Also, Java and C++, even if they are "only" used at a "few" companies that happen to have the hiring power of 1000 startups each.
Rust, maybe. I'm not particularly leading edge myself, so I've heard of it but never actually tried it.
Yep. The last time I picked up a language it was python. It lived up to much of what I had read. I've ignored most languages and watched them come and go with the exception of web dev which is not my thing. I wanted a better more pythonic C++ and have started dabbling in Rust. It appears to be everything people say. Would recommend.