I'm a polyglot, currently "paying the bills" with Ruby on Rails work. I do and always have enjoyed it, but I find myself now taking spare minutes here and there to read/study/cram as much as I can regarding Elixir and the Phoenix framework.
I'll always enjoy Ruby/Rails and I'm sure to some extent they'll feel like home, but I love to always learn and I'm big on Elixir right now!