I really was not (and still may not be) a fan of the three division format, but here's how it was explained to me.
There is a problem with playoff seeds, etc. when you have a five division format (for example, one district in West Texas, one or two in the DFW area which could be as far as Longview and Wichita Falls, one or two in Austin/San Antonio, and another district in the Houston area). It is difficult, especially with travel, to do four districts in each division -- especially if one of those districts tends to be small (three or four teams).
As most know, I tend to like larger districts (six to eight teams) because it (1) takes a lot of scheduling headaches away when you have 5 to 7 district games set ahead of time and (2) sets up a schedule with more MEANINGFUL games (games that determine if you're in the playoffs and give a team with a loss or two in district play a chance to compete for a playoff spot. Since 7 of the last nine or ten D2 champs have come from such a district, I think I can make a solid case for that.
My concern with the three division format is that if teams are unable to play, we end up with two or three team districts (for example, last year, D2 District 3 was a two team district). But, if most or all of those teams are able to play the season, it should work.
Perhaps the three division format might encourage some of the smaller (<25 boys) or mid-size (25rr-40 boys) TAPPS member schools to start up a six-man program (one of the BETTER encouragers to that would be to drop fall soccer, but then again, to me, soccer is a commie pinko sport).
I haven't confirmed this with the TAPPS powers-that-be, but one of my spies is telling me that the playoff format next year in six-man will be a three week, eight-team tournament in each division; taking only the top two teams from each district. I figured it would be extremely difficult to play a 16-team field, as each division is only about 20 teams, but I could see a four-week, 12-team field with the district champions getting a first round bye.