Trump, as is characteristic, will most likely bring it up in the way that he chooses best and will not be forced.
Since we can’t trust Sharpton, then any news from his side should be treated as unknowable as to truth.
We might be able to trust Trump... he has and still might have wrongheaded positions but has not been caught in a lie yet. And Trump called Al a con man in the interview. Sounds to me like Trump is saying that he has the better of the relationship.
I say a better than 50% chance of a big surprise here, again to be revealed when Trump is ready to reveal it.
time may tell...
here from July we have AL Sharpton saying that Trump is a secret democrat
Al Sharpton: You Got Him! Trump Is A Secret Democrat
“I’m no conspiracy theorist...” says Al Sharpton. “But the evidence speaks for itself.”