It's possible that it could draw kids from outside the low country but I would expect the training location (presumably the greater Charleston area) to be an impediment to midlands and upstate participation.
Given that CESA and CUFC decided to take a pass on it, I am assuming that there was no big outcry from the kids or parents to participate. that doesn't mean that there won't be some individuals, for reasons of their own, who try out. But, I will be very surprised if many (or even any) of the CESA or CUFC players in these age groups try out. MPSC, on the other hand, being in the neighborhood, seems vulnerable to losing some players.