If you analyze this topic by conferences, it only makes sense that the Big 10, Big 12, and ACC make more schools have wrestling.
Big 10, 4 schools would add - USC, UCLA, Oregon, and Washington
Big 12, 12 schools would add if all, so half would be great - BYU, Texas Tech, Utah, Baylor, Arizona, Houston, Cincinnati, UCF, Kansas St, Colorado, Kansas, TCU. My picks here would be Arizona, Cincinnati, Texas Tech, Colorado, and Kansas St. I know it is only 5, but they are either in a location with a natural rival or close proximity to opponents to minimize travel.
ACC, 11 schools if all, 5 would be great - BC, Cal, Clemson, FSU, GT, Louisville, Miami, ND (other than football, they are an ACC member), SMU, Syracuse, Wake Forest. My picks here would be Cal, GT, Louisville, ND, Syracuse, and WF (yes another Div 1 program in the state of NC) Again, natural rivalries and proximity to opponents would make it easy for them to sponsor programs and keep costs down.
So, in my warped mind, 15 new/revived programs added into the mix.