The "problem" with Odin and Jai is mainly that they are both in the initial stages of development and still taking shape, so we don't know how they will turn out..
Also, they say that it takes 10 years or so for a language to become mature enough to be really useful, so considering that Nim is currently 9 years old (2008 - 2017) ... It is important to me that whatever language I am about to choose, that it has proven itself, and has some kind of community built around it. It doesn't have to be huge, though.