Trends are there, camp and early commitments. If you want my opinion (for whatever it is worth), traveling is expensive and time consuming, and most are wanting to wrap it up by late summer and be done with it, so they can spend more time with their team. I think that there is a trend also for bigger schools to pull players from smaller college programs. I think that recruiting and signing players that will be drafted, then scrambling to fill the spots early or late summer has become another issue to them as well.
I was really amazed that I saw fewer coaches and scouts at tournaments this year than last year.