The livestream is expected to begin approximately an hour after the Board of Trustees meeting.
Mizrahi did not appear in a game in two years with Penn State.
Warden is the third Nittany Lion to enter the transfer portal this spring.
In three years at Grand Canyon, Herr played in 51 matches for the Antelopes.
Despite a high scoring last inning, Penn State fell short of a comeback.
First pitch is slated for 5:30 p.m.