Jean, what do you need? I can help on some things. I am not sure if a Case Expo committee has been formalized, but if so, I would like to have that info as well. Thanks!
Not sure if anything has been officially set up yet, but I would suspect Jim Briden and Eric Nelson will be involved. Erik Mars might be as well, and he likely has some pictures.
I'm not sure if your aware prairie village in Madison SD Has the National JI case show in 2019 the weekend before Rollag its around 3 and a half hours south of Rollag so there will be a lot of case collectors not to terribly far away