#4 The Viking Raiders' open challenge
The Viking Raiders have been a truly dominant force since coming to the main roster. They haven't had success with finding credible competition, so they decided to issue an open challenge to anyone wanting to take on the fight. Considering the fact that no one has answered their open challenge yet, it can only mean that their opponents are going to show up at TLC. Fans are eager to see which team will have enough heart to accept.
This could possibly be teasing the return of a legendary or a sidelined tag team. If that's really the case then we will know that the payoff of this long wait was well worth it. Think about it, when WWE leaves us hanging with "surprise partners" and we find out that they're actually a 10-year-old kid in the Wrestlemania audience, then other bizarre match-ups are also possible.
When they really come through with a good surprise, like The Rock being the host of Wrestlemania after years of being away, it makes up for the waiting period. So, if WWE has something under their sleeve, it better be well worth the reception of the fans, good or bad.