#3 Triple H takes out a Superstar and enters the match
While announcing this unique stipulation to the Money in the Bank match on SmackDown, Michael Cole and Corey Graves unexpectedly mentioned the name of Triple H and pointed out the fact that in his Hall of Fame career, the 14-time World Champion has never won the Money in the Bank match. In-fact, the Cerebral Assassin has never competed in a MITB match throughout his career.
The out-of-nowhere mention of the Triple H during SmackDown could be a hint at him somehow getting involved in the match. Other than being a WWE Superstar, the Game is the Executive Vice President of Global Talent Strategy & Development of WWE as well as the senior producer of NXT. It only makes sense for him to be present in the WWE Headquarters.
What if one of the Superstars in the match bumps into Triple H at the Headquarters and gets into an argument with him. Someone like King Corbin could play this part where Corbin infuriates Hunter to the extent where he ends up taking him out and enters himself into the match in Corbin's place.
Of course, the chances of Triple H becoming Mr. Money in the Bank 2020 are extremely low, but remember - never say never.