As we noted, Bray Wyatt vs. John Cena was the current plan for the main event at WrestleMania XXX but now that is not the case.
Word going around WWE is that Cena vs. Wyatt was not something discussed recently. The idea of doing that match came up over a month ago with the idea that Wyatt could win the Royal Rumble and challenge Cena for the title at WrestleMania XXX. However, this storyline was mapped out before WWE made the decision to unify the titles at TLC, before they made Randy Orton champion and before the announcement of Batista’s return.
There’s now a feeling within WWE that Batista will win the Rumble and challenge whoever has the title at WrestleMania XXX. This doesn’t mean that we won’t see Wyatt vs. Cena down the line, but most likely not at WrestleMania XXX as WWE has other plans for Cena at the big event.