CSI: New York returns for season 5 on September 24.
CSI: Miami returns for season 7 on September 22.
For those that do not know, the original CSI returns for season 9 on October 9.
As usual, the network and local stations mistakenly think they have the right to change schedules without notice so check local listings to be sure of the time and channel in your area. If you live outside the United States, these dates might be different.