The American Civil War ended in 1865. April 9, 1865. In Kentucky, slavery legally ended on December 18, 1865, when the 13th Amendment went into effect.
https://en.wikipedia.org/wiki/History_of_slavery_in_Kentucky
Slavery lasted 8 months longer in the Union than it did in the Confederacy.
But that’s not what you said. You falsely claimed, “There was no talk of freeing the slaves in the five slave states that remained loyal to the Union.” In truth every northern state either was a free state or had a defined path to emancipation.
Additionally every northern state participated in negotiations for the 13th Amendment both 1.0 and 2.0.
The five northern states talked about freeing the slaves.
Not really. Berkley, Accomac, Northampton, Elizabeth City, York, Princess Ann, and Norfolk counties in Virginia were all excluded from the Emancipation Proclamation. Slavery was legal there until the ratification of the 13th Amendment.