After giving this some thought here is what I would propose.....
For reference from 2015:
Regionals World Series
JLBB 8/5 - 8/12 8/16 - 8/23
SLBB 7/24 - 7/21 8/2 - 8/8
BLBB 7/19 - 7/25 7/28 - 8/4
Each World Series consists of 10 teams (5 U.S. / 5 International)
All of this X2 to include softball
Little League fully covers all travel, meal-related expenses, and lodging for all teams participating in each of our nine World Series events. Totaling nearly 100 teams annually, these expenses were more than $2,615,000 in 2015. This includes travel for all international teams to attend each World Series tournament held in August in the United States.
Volunteer umpires that travel to the World Series levels of tournament play at all nine World Series also receive a stipend to offset their travel expenses. Each umpire receives a stipend of $400.
I would consider the following:
Senior League...................13 through 16
Big League........................16 through 19
Eliminate Juniors and continue to push for Intermediate participation for the still blooming 13's
Lengthen the season and push back tournament dates
Stop all play at regional level for everyone except 11/12's and Intermediates
Allocate a portion of the current travel expenses to the Regionals, who really struggle to pull these tournaments off.
Allocate the rest to reduce the $200 tournament entry fee back down.
I am a firm believer that high school kids should still be able to participate in a full recreational baseball season, This gives them 7 weeks to get in a nice season and a District Tournament. It should increase participation at all levels with some consistency of season.
The dilemma would be what do you do with the warmer climate teams and kids ready and willing to participate prior to the schools releasing players.