According to reports from multiple entertainment sources, both Black Pink and Sechskies will have to skip out on two days of the three-day long Korean thanksgiving to film their MVs.
For the fastest comeback possible, Black Pink is said to film their new MV on September 14 and 15. The same goes for Sechskies, who will also be filming their new MV on the exact same dates as Black Pink. It is possible that Sechskies is filming the MV for the new song that they will perform on October 2.
As the specific dates for either group have not been confirmed, it is highly likely that according to the the two group's overall work speed, the comeback could be delayed or forwarded. We shall just have to wait patiently for the details!