WWE is expected to do their next Superstar Shake-up shortly after the company moves SmackDown to FOX next month.
John Pollock of POST Wrestling is reporting the tentative dates for the next WWE draft is the October 11 edition of SmackDown in Las Vegas, and 10/14 edition of RAW in Denver. This will happen a few weeks after SmackDown debuts on FOX.
WWE held their last Superstar Shake-up this past April, with rosters not being distinct to each brand due to a Wild Card Rule that was implemented shortly after.
The next draft is expected to have static rosters.