I think that it will have some difficulty gaining traction, not so much because of its foundation, but because of demographics. Successful religions typically require some sort of enduring community. My experience with these groups has been that they form, burn brightly for a while, then fizzle out as life takes its members in other directions. Physical infrastructure is a big step towards solidifying the continuity of any religion, and I know of no such infrastructure in development for these paths.
Having been part of a group like this before, I have many thoughts I could potentially share, but I'm not really sure where to start. I suppose I can note that the group I was part of really didn't regard what we were doing as a religion. It was much more of a philosophy or way of approaching ethics in particular. That's not to say it couldn't be developed into one, because it could, but that wasn't the focus of our group. It was about living honorably.