I'm surprised noone is talking about this yet. I'm a huge fan of the franchise. I'm actually intrigued where they can go with the series after the end of Saw III.
Originally it was implied that Saw IV was going to follow Jeff trying to recover his daughter and escape Jigsaw's posthumous trap. But the synopsis and cast list sounds like that's no longer the plan. But from the info on Wikipedia, it sounds like we'll at least get an answer to what was in the envelope John left for Amanda. Can't wait!
FYI: Betsy Russell played John's old honey as was glimpsed in the memory flashes that Jigsaw suffers during Saw III. So I'm almost wondering if she's going to have taken up the game in place of her deceased love. Might be an interesting take on things.Jigsaw and his apprentice Amanda are dead.
Now, upon the news of Detective Kerry's murder, two seasoned FBI profilers, Agent Strahm and Agent Perez, arrive in the terrified community to assist the veteran Detective Hoffman in sifting through Jigsaw's latest grizzly remains and piecing together the puzzle.
However, when SWAT Commander Rigg is abducted and thrust into a game, the last officer untouched by Jigsaw has but ninety minutes to overcome a series of demented traps and save an old friend or face the deadly consequences.
Starring Scott Patterson, Betsy Russell, Costas Mandylor, Lyriq Bent, Athena Karkanis, Justin Louis, Simon Reynolds, Mike Realba, Marty Adams and Tobin Bell as Jigsaw.
Info and first picture from Saw IV: http://en.wikipedia.org/wiki/Saw_IV