Best guess.....
Nick Zeisloft is an all-American scholar and undoubtedly will have completed an advanced degree much like Matt Roth did.
I'm sure Crean would like him back, however he may be planning around him as he did Roth. Roth didn't want to stick around for summer ball and school and Zeisloft may feel the same way.
My next player to go would be one of two, or perhaps both, Yogi and Troy. When Crean loses kids to transfer to another school, it's usually after their second year. One can wonder from there. A junior to be is a good candidate to transfer if he can't see ample playing time going forward. Robinson could be candidates if that thinking is accurate. Davis is the wildcard, not knowing the extent of his injury or progress towards a 100% recovery.
I think Priller and April will be back as sophomores unless one or the other has worn out his welcome mat.