The bar was for sale right after it appeared on Bar Rescue in April 2016, which was stated in the original update. A new bar (which is still open) called Game 6 Honky Tonk Joint opened in the Pastimes on 4th location in the fall of 2017, so Pastimes on 4th closed sometime in the middle of 2017. Pastimes on 4th didn't have much of an online presence and had very few reviews despite being on Bar Rescue, which is the reason why it was hard to figure out it closed. The owners of Pastimes on 4th also own a restaurant that was featured on Food Network's Restaurant: Impossible, and that restaurant remains open.
Pastimes on 4th was originally called O'Kelly's at the Ballpark before Jon Taffer did the makeover, and the bar did keep the name given to them Bar Rescue. Pastimes on 4th has been marked as 'Closed' on the Bar Rescue Updates Page.