[Simulacrum0]

Javascript will be with us for a long time ( the new BASIC?)

C99: while there is much to applaud in Rust and Swift, but i doubt C will be displaced in the embedded space given the pace of embedded device development and scale of legacy libraries and investments.

Languages from Walled Gardens, even when open sourced, such as Microsoft/Unity & C#, Google & Go, Apple & Obj-C/Swift, etc., do not seem to expand far from their origins, and thus their fates seem entwined with their creator. Hard to call their futures, but i suspect the market will shift.

LLVM's intermediate language (IR) and Vulkan's SPIR-V, seem to underlie many other languages compiled outputs so i'd expect they will be with us for a long time as a validating, porting, and research standard.

[Veen]

Swift is an interesting one because IBM seem to be quite keen on it as a server language:

https://developer.ibm.com/swift/