I've heard Connor Manz, Cooper Teare, Patrick Devers, Abdirahim Nur, Morgan Beadlescomb, Yared Nuguse, the entire Colorado, Oklahoma State, and Arkansas teams are all returning everyone.
Georgetown's Jack Salisbury, Luis Grijalva, Blaise Fero, Cole Hocker, and the two Iowa State guys are departed.
I also heard Cooper Teare went pro so I'm not sure what to