I'd much rather see the divas match bumped off, in favor of adding a tag team title match (a ladder match would be awesome), and making the other matches longer.
Dark match will probably involve Ted DiBiase and Jinder Mahal.
If the WWE is going to add two more matches it would probably be Cena vs Kane and a tag title match. Personally for the tag titles I would love to see a TLC three way tag team championship match between AirBoom vs The Usos vs Hunico and Primo or Epico. A Divas Title Dark match could be contested in a Ladder match with Beth vs Eve vs Natalya vs Kelly Kelly.
It might be Kane vs John Cena, or AirBoom! vs Primo and Epico for the Tag titles!
D-Bryan vs Tyson Kidd
Air boom vs Epico and Primo
Mahal vs Dibiase