I only offered it as an idea, not something I actually wanted to implement. The second "option" actually added Metal to the existing 5, making 6 in total.
But there could still be Lightning (those with both Wind and Fire Chakras). It just wouldn't be one of the "pure" Chakras.

Regardless, everything in the OP is not concrete. The idea is to collaborate to create a world we're familiar with but our own. I'm hoping this makes the players more attached and less likely to leave xP
I haven't heard from Phobos in a while, so I'm thinking they lost interest. If you'd like to throw up any of your own ideas or expound upon any I've hinted at (possibly denouncing them or even fleshing them out), I'd be happy to read your opinions and thoughts. :)