I believe the dates will be July 12th - 17th and it will be a Waukesha for at least 1 more year, possibly 2 years. The home grounds is coming along. More info on the home grounds should be available when the meeting minutes are posted.
The information that has been made somewhat public is there is a couple locations. The leading location appears to be Rome, WI near Wisconsin Rapids. There is a very generous donation made to the WTA from a wonderful man named Ray Moser. His donation has contingencies as to the location. Wisconsin having its "Home Grounds" will be a tremendous asset for the shooting community of Wisconsin!