There was a rumor last month that SmackDown will be officially moving to Thursday nights on Syfy starting on October 2nd. Syfy has SmackDown on their schedule on Thursdays from 8pm – 10pm, followed by Haven at 10pm.
A press releases was issued stating that Haven has been moved to Thursdays at 8pm ET/PT, followed by Spartacus: Gods of the Arena at 9pm and 10pm ET/PT, which would have been the new SmackDown time slot.
It should be noted that Syfy still has SmackDown on Thursday nights on their schedule on their official site starting October 2nd. Syfy lists SmackDown on Fridays followed by “Z Nation” through the end of this month only.
Update: F4WOnline.com reports that WWE has confirmed that SmackDown will remain on Friday nights this fall.