Lots of companies are still using it, and although it's not hyped that much anymore, it is much nicer to use than JS or PHP which means dealing with legacy code is less of a headache IMHO. So it will continue to be a money machine for those who don't need to be at the bleeding edge and reinvent everything.
It's also faster than Python on a bunch of benchmarks (sorry I don't have a link). The next version will have a JIT compiler so performance will keep getting better.
There's also Elixir and Crystal which are inspired by Ruby, so the spirit lives on regardless.
