[pjmlp]

As Alan Kay says, we have moved from a technical community to a pop driven one, so these hype cycles will never end while this mentality carries on.

Having said this, Go got its killer application in the form of the main language driving container implementations.

Rust might eventually get its one beyond the current browser implementation and get adopted by an OS vendor.

Just with Apple doing Swift, Microsoft .NET Native and C++/GSL, maybe it is left for Google and their Fuchsia project or an embedded OS vendor to do it.