As of tomorrow, most players that signed new contracts over the summer will become eligible to be traded, but that doesn't meant the Mavericks, a team that added a number of new players this past offseason, will start aggressively pursuing deals. According to Eddie Sefko of the Dallas Morning News, the Mavs aren't seriously engaged in any trade talks now, and figure to wait until Dirk Nowitzki returns to assess the roster and determine whether or not to make any moves.
Nowitzki underwent arthroscopic surgery on his right knee in October and continues to recover from the procedure. The Mavs are hoping he'll return to the court before the new year, which would still give the front office a number of weeks to observe the team with Dirk in the mix.
Little-used young players on expiring contracts like Rodrigue Beaubois and Dominique Jones could be trade bait before the deadline for the Mavs, while Shawn Marion, who has a $9MM+ player option for next season, could also be shopped if the team wants to create additional future flexibility. That's just my speculation though, as there's no guarantee that Dallas will even feel the need to make a move.