According to several fans who recently arrived in Dallas, Texas for WrestleMania 32 Week, there are several posters in the Dallas area showing Roman Reigns vs. Triple H as being a No Disqualification match for the World Heavyweight Championship.
As of this writing, WWE has not confirmed the “No DQ” stipulation but there is a chance it may be announced on SmackDown or during the WrestleMania 32 pre-show or event the main show.