I think the new age rules will have a modest impact for now but maybe more so in the future. Not all tournaments are US Lacrosse sponsored so their own rules apply. As more US Lacrosse events become more popular (U15 Nationals) a tendency to follow it's guidelines will become prevalent.

Since lacrosse is so popular on LI, I believe travel teams will stay with the graduation year format. The main reason is for college recruiting. After 15 it is all High School rules. In my opinion they should have U14 and under for Youth and keep it completely away from High School age.