My prediction on the guilty plea:
Pleads guilty to one misdemeanor charge of solicitation (the other charge dropped); hefty fine and/or donation to women's group combating sex trafficking or prostitution, maybe in lieu of community service (but maybe not, although query if a prosecutor would make a 77 year old do community service, especially one with lots of money), no STD tests; maybe a class on combating sex trafficking; videotape destroyed or permanently sealed, or both. No jail time or probation.