There's two Texas dates following the New Orleans gig, they were listed on NME.COM awhile ago (some dates may have changed) along with their early September shows which include the Santa Barbara County Bowl show on September 7th:
September 1, 2008- Spokane, WA Radio Event @ Greyhound Park
September 5, 2008- Sacramento, CA @ Raley Field
September 7, 2008- Santa Barbara, CA @ Santa Barbara County Bowl
October 25, 2008- Dallas, TX Edgefest @ Pizza Hut Park
October 26, 2008- Corpus Christi, TX Concrete Street Amphitheatre
http://www.nme.com/news/stone-temple-pilots/36639I think there's a good chance they'll play KROQ's LA Invasion (formerly known as Inland Invasion) since that's usually in mid September and it had a 90's theme last year and if they want to run with that concept STP would be ideal headliners.