Is Tobin Bell in Saw 8? Hey look, spoilers

MovieWeb published some news back on July 23 about Saw 8 aka Saw: Legacy aka the next Saw movie to grab your money, and I’m just catching up now.  Apparently, Tobin Bell has a role in this movie.  I’m not sure how much, but MovieWeb gives us some spoilers about a scene featuring two people digging up Jigsaw’s grave.  Remember, the guy died in Saw III.  Why are they digging up his grave?  To resurrect him?  To put him in a chair?  To stuff him to hang on their wall?  I don’t get it.  Sounds like a misdirect to me.  Jigsaw opens in October of 2017.