Not sure. But after the success and enrollment factors, my early guess for the sectionals involving SIAC teams would be:
The 3A "gauntlet" sectional - Heritage Hills, Memorial, Gibson Southern, Mater Dei, Southridge, Vincennes, Mt. Vernon, Princeton
---Absolutely loaded sectional. AT LEAST three of them could make a deep playoff run but only one would move on, unfortunate but fun matchups.
The 4A "Reitz or Jasper" sectional - Reitz, Jasper, Bedford, Boonville, Bosse, Central, Harrison, Washington
---This sectional seems weak at this point. Hate to assume anything, but Reitz or Jasper would probably win it and then be favored in the Regional.