This Sunday, Dec. 15, the WWE will unify the WWE Championship and World Heavyweight Championship when John Cena and Randy Orton go one-on-one in a tables, ladders and chairs match live from the Toyota Center at the TLC pay-per-view, but recent developments may have given away the ending to the match.

According to Wrestlingheadlines.com, when the WWE taped their annual Tribute to the Troops holiday event this past Wednesday in Washington which is set to air nearly two weeks after the WWE's TLC pay-per-view, John Cena appeared on the show without his World Heavyweight Championship, leading many to speculate that he may lose the belt to Orton Sunday night.

Orton didn't appear on the show but with Cena coming out without either title on an event that's made to air 13 days after the TLC pay-per-view, speculation is that the WWE may have had Cena come out without his World Heavyweight Championship because he is set to lose it Sunday night.

While that is possible, Cena did a quick run-in during the show to save Daniel Bryan and CM Punk from an attack by the Wyatt Family which eventually led to a six-man tag team match involving those six men, so it could just be that Cena "rushed" out without his title to make the save or that he didn't travel with the belt in tow.

It has been widely speculated that the WWE was planning a "screwy" ending to the Cena and Orton match considering that the WWE has been hammering home the point that the titles will be definitely be unified, even with WWE COO Triple H "guaranteeing" there will be one champion after TLC.

One backstage report stated that there was speculation that Cena and Orton may switch belts at the event, with Orton leaving with Cena's World Heavyweight Championship while Cena escapes the WWE Champion with the titles not unified.

Having the two different champions around could possibly lead to a WrestleMania XXX rematch between the two to settle it once and for all, but it has also been rumored that Cena may team up with Hulk Hogan at the show.

Other matches on the card include Daniel Bryan vs. The Wyatt Family in a 3-on-1 handicap match and CM Punk at a 3-on-1 disadvantage against The Shield. The tag titles are on the line as Cody Rhodes and Goldust defend their titles against Antonio Cesaro and Jack Swagger, The Big Show and Rey Mysterio and Ryback and Curtis Axel.

The Intercontinental Championship will be defended when Big E Langston takes on Damien Sandow and A.J. Lee will defend her Divas Championship against Natalya.

In the kick-off pre-show match, Fandango takes on Dolph Ziggler to round out the card.

Anything can happen at the end of the night, but WWE TLC takes place on pay-per-view this Sunday live from the Toyota Center in Houston.