Didn't Kerry King a while back say that WPB would likely be the last Slayer album? I know it was well before it was recorded and hasn't mentioned it since then, but you'd think with Jeff still recovering and Tom Araya's health issues as well they'd call it quits.
08/08 - Slipknot/Lamb of God
09/30 - Revocation
10/04 - The Black Dahlia Murder
11/12 - Kataklysm