C, C++ and Go are going strong. All operating system kernels we currently use are in C, as well as most low level drivers and libraries. Most PC client applications are in C++ including most video games. Common web servers are in C. They will be around for many more decades.<p>Go already replaces Java and dotNet as a leaner more suitable server language in some companies. Nodejs and Go apps (+ JS in the web browser) replace older CRUD web apps written in Ruby&#x2F;Python&#x2F;Perl. Most languages will stay around for a long time, although a less popular for beginners.<p>Java and dotNet will have a harder stand. On the one hand dynamic typed languages like Lua, Javascript and Hack&#x2F;PHP with their JIT compilers are already (almost) as fast and allow developers to be more productive while still offering optional typing when&#x2F;where speed matters. On the other hand new static compiled languages get more approachable (Go, Rust, Swift), are faster and use less memory.<p>Paradigm shifts surfaced exotic languages and trends. So Erland&#x2F;Elixir, Go, Nodejs and others are very popular for todays web services.