It is being reported that if the Nets can't trade for Dwight Howard Deron Williams would not be re-signing with NJ and wants to play for the Lakers, Mavericks or Knicks.

That Deron Williams/Andrew Bynum trade will happen at some point... 

http://espn.go.com/new-york/nba/story/_/id/7484258/new-jersey-nets-deron-williams-list-teams-go-to