I like most of these ideas for an alternate world to Naruto but I do have to wonder why the omission of lightning chakra?

I always thought that the edition of the lightning style to the four basic elements that you normally see made it more interesting, and adding charkra natures and types to that would only really make it more interesting. Exploring further ways you can define or refine chakra in a new version of the Naruto universe makes it feel more advanced and I don't think removing lightning chakra would help that any, it just seems like you'd be missing something, It could even have it's own village since the idea of having different regional basis for each type of chakra makes a lot of sense when the villages in the original universe were loosely based on different elements, without actually having most of the ninjas specialize in that element. 

Think this would be a seriously good idea if thought out properly, and a new map does sound pretty awesome.