It will take time for this to settle. The reality is the clubs that start building teams specifically for this event will dominate, and traditional clubs with grade based teams will not be able to compete and thus will probably drop out. So you will have a bunch of new clubs filling the void for traditional club programs that will lose interest quickly, probably this year or next. Especially once a few 7th graders get seriously hurt by 8th graders that are 15 months older and 50 lbs heavier.