Rust is the big one for me, personally. The idea of being to write in one language for embedded software, system software, cli tools, web applications, distrib

Rust is the big one for me, personally. The idea of being to write in one language for embedded software, system software, cli tools, web applications, distributed applications, and now the web client? That's a very enticing idea. It might finally be the realization of what Java failed to accomplish (technically it did, but never gained a lot of traction on the client b/c it was too slow at the time).