"The Mania lineup at this point is looking like Goldberg vs. Lesnar, Undertaker vs. Roman Reigns, HHH vs. Seth Rollins, Jericho vs. Owens, Wyatt vs. Orton, Show vs. Shaquille ONeal and Charlotte vs. Bayley vs. Sasha Banks vs. Nia Jax as the Raw womens title match. The key is the Rumble winner is likely, although they could swerve, to be the person who will challenge for either the Universal title or WWE title.
The only Smackdown match on that list is Orton vs. Wyatt, and its not a secret that Wyatt was scheduled for a title run in 2017. That immediately puts both of them in contention, and if one wins, the other would be favored to win the Chamber match. Theres a story that just started going around about Orton winning the Rumble and Wyatt winning the Chamber match. If that doesnt happen, it would be because plans changed. Even though historically the booking before Mania always gets out and it almost never changed (it changes for other reasons, such as injuries or guys quitting, but thats usually known as well), with the increase in social media, my feeling is nothing is a lock until it happens. I doubt well see major destination changes, in the sense the top of the card will probably be pretty close to as is slated now, but how to get there could change."