Ken Smell sent this in.
Today WWE WrestleFest released update 1.0.4 which allows you do download DLC Pack 3. DLC Pack 3 includes L.O.D., Christian, The Big Show, R-Truth, and the 1998 WCW Nitro arena.
Unfortunately, the download button appears as (null) (null) $0.00 and cannot be pressed, making this update about as useless as the WWE Legends of Wrestlemania game on iOS 5 or above. After that major fumble, you would think THQ would be a little more careful in trying to please the WWE fans.
To see a screen shot of the error and the Pack 3 content, visit http://www.kensmellsgood.com/2012/03/wwe-wrestlefest-dlc-packs.html . I also included the E-mail that I sent to THQ.