Ayo declaring was kind of expected after a fairly strong finish. I think he is marginal as to getting drafted in second round based upon the various mock drafts. He is in very few of them.
He will certainly be in the mix to get a shot at making a roster no matter what. His length and ability in open court is a big asset. I see guys like Winston, however, all over the place in mocks who are more well rounded developed players and also not on the draft board in various mocks.
Its hard to say what happens.
Ayo is good college wing who can't shoot the three right now in an NBA where the three is a major part of the game anymore.
I think he can develop and stick on an NBA roster if he can develop his handle, passing, shot, and defense.
He has to improve his shot mostly and he has the work ethic to do so.
https://www.samford.edu/sports-analytics/fans/2019/Are-Teams-Living-or-Dying-by-the-Three-in-Todays-NBA