To your question:

Illinois - Perry's contract is through 2027.

Indiana - Stanton is the same as above.

Wisconsin - Healy is signed through 2029.

Create your own odds on whether the coach will leave, be fired, or be extended prior to those dates. There is probably only one B1G "coach for life" in the Midwest - Drohan at NW.

I would be careful to avoid camps because you think the coach is leaving. First, that risk always exists - the coaches are under increasing pressure to win. Second, it's very likely they end up at another school. (Good recent area example is the pitching coach at Iowa who goes to Miami OH for one year and then becomes head coach when 2K took the OSU job.)

Camps are usually a longshot ROI unless the school has invited you, or you have the type of athletic ability that stands out so incredibly in the limited reps that coaches see you perform.

Instead, use the camps as a way to expose your daughter to the life of college athletics and to compare their abilities to others. Plus, while it's real money, a few hundred in hotels, gas, food and fees is NOTHING when the softball clock stops ticking... one day you'll give 10x that amount for a couple more days with your kid.