I've also been thinking about there being another light guild appearing at some point because it does seem a bit crowded in the guild. But like Silver Fox said, it is like a natural thing. 

There's also the thing with S Class and how it seems that a few people want it. But if everyone could pick S Class, then most people might of already added their CS a S class. Having another guild does sound like a good idea to help balance the amount of S class members so Phoenix Wing isn't filled with S Class and people might have a chance at the other guild. Having a Co GM sounds like a good possible idea, but if we do, adding a new Co GM might be good to help keep balance as well, maybe, it's still a thought in my head.

There is however, the other workload that might come by making another guild. That's why I think it's better that if we do have another light guild, it someone else except for Caits might need to manage it. Though, I'm still thinking how it will work for arcs and job requests?