Deadline to declare is Jan 16. So we should expect to hear about the remaining decisions soon enough.

Still deciding:
Luke Wypler
Matt Jones
Tommy Eichenberg
Lathan Ransom

Returning:
Miyan Williams
Cade Stover
Steele Chambers

Leaving:
Dawand Jones*
Paris Johnson
CJ Stroud*
Josh Proctor*
Ronnie Hickman
JSN

*Projected to be leaving. 

Mod Edit: Added footnote for players widely believed to be headed for the draft that have not formally declared.