The meta-programming on the other hand may well be a huge draw to Erlang shops.
I vastly prefer Erlang syntax to Elixir's, but IMO it's way too early in the game to say this. In the unlikely event that the people who were attracted to Elixir because they couldn't handle Erlang's syntax can manage to grasp OTP, I imagine that Elixir would ultimately kill Erlang dead. An Erlang that has the same power and expressiveness, runs on the same VM, and is completely compatible - but looks like Algol - would be an irresistible force.
Elixir is more visually similar to Ruby, sure, buts its substantively not very similar, so the visual similarity is, if anything, a detriment, IMO.
For the typical programmer coming outside the Erlang/Elixir environment, Elixir is by far the more familiar and easier to pick up.
In any case, yeah, I'm not saying that my personal Erlang vs. Elixir response is anything more than my personal response (or that Elixir isn't valuable; its certainly something I'd like to find time to explore more deeply and I think it has a lot to offer.)