Rust? Well, talk about hip and groovy blah blah. About as great as C++. Full of complicated features, all pretty much focused on nitpicking, not expressivity. Could become hipster stuff for small projects. Enterprise? It's missing the point. There's no Machine Learning, no UI tools, no communications abstraction, no nothing. Just storage allocation without garbage collection.
Haskell will remain solid, but used by its aficionados. Rust will die as a niche language, and C/C++, sadly, will continue to dominate the low level coding, for better or for worse. Python and JavaScript will fill the UI centric space of Enterprise, with Python largely owning data centric stuff, and JS owning phone/tablet UX.