The release of the event has been out since Friday afternoon but only just saw it (hence, why it's inadvisable to release things on Friday afternoons), but the NWHL announced there will be an 11:30 AM Central luncheon centered around an announcement.
Attendees announced (in order billed on the release):
-NWHL Commish Dani Rylan
-NWHL Deputy Commish Hayley Moore
-Winny Brodt Brown and other representatives of the Minnesota Whitecaps.
-Amanda Leveille, 2018 NWHL Goalie of the Year [Buffalo] and Minnesota alumna.
-Minnesota Governor Mark Dayton
Clearly they're announcing #OneLeague
In all seriousness, the Whitecaps joining makes a ton of sense. The NWHL ASG was played out there this past January and it makes sense to have an existing club affiliate with the league as opposed to starting a competing club.