Checked a couple of places and came up with this list.
Definitely gone:
ZEKE NNAJI, Arizona
ONYEKA OKONGWU, USC
ISAIAH STEWART, Washington
Testing the waters. Some will go, some will return.
TYLER BEY*, Colorado
NICO MANNION*, Arizona
REMY MARTIN, Arizona State
ROMELLO WHITE, Arizona State
MCKINLEY WRIGHT, Colorado
TYRELL TERRY, Stanford
BOTH GACH, Utah
Expected to test the waters, but have not announced yet.
JOSH GREEN*, Arizona
JADEN MCDANIELS*, Washington
CJ ELLEBY*, Washington St.
CHRIS SMITH, UCLA
NAZIAH CARTER, Washington
Edited to add Both Gach.
Another edit: Added a star to ‘test the waters’ guys who are likely to stay in the draft. Added a couple of new names to the ‘expected’ list.