Elixir has some good things about it (hygienic macros, protocols, and so on) but the syntax is not enough by itself to make us switch. "Ugh, Erlang syntax sucks" is a refrain heard around the Internet, but it has not hindered us from getting good engineers who are happy to develop with it. I daresay that the syntax is the least of your problems when learning Erlang; the message-passing concurrency and fault-tolerance models, and functional style are more difficult to understand. Those problems don't go away when you use Elixir instead.
If you want something Scheme-like on the Erlang runtime, there's LFE (Lisp-Flavored Erlang): https://github.com/rvirding/lfe
If you want something Scheme-like on the Erlang runtime, there's LFE (Lisp-Flavored Erlang): https://github.com/rvirding/lfe