Predictions:
Lesnar vs Reigns to no contest because Rollins cashes in during the match when they wipe each other out (these left field predictions never work out for me).
(I'm keeping an open mind and considering the possibility that Lesnar retains and the whole contract thing was a work, Lesnar laughs saying he's never leaving, then Cena appears the next night and says 'something something title match, son' to a guy the same age as him...)
Triple H def. Sting. Triple H is booking himself, so he knows he can lose every match and be retired and still appear at every WrestleMania in a gala match, but Sting might not appear again so hey, someone's gotta beat him, oh look it's me Triple H that's having his last match, I guess I'll have to win.
Ladder match: don't care, Barrett I guess. In these matches it's always smart to go for the champ. The idea might be to put the title on Bryan to have an excuse to keep him away from the main event, but I bet an idea that gets creative harder is having Bryan lose some more.
Taker def. Wyatt in a squash. Wyatt doesn't get over beating him, he doesn't lose heat losing to him, Taker gets to save face without working a long or energetic match.
Cena def. Rusev. "I'm from America and I-duh I-dub... I'm American!" "I'm the Russian guy!" They already turned Cena into pro-America Hulk Hogan last WM, but I already have a couple of guys facing their mortality post-Mania (Wyatt, Bryan), so Cena wins lol.
Golddiggers def. Jailbait & Generic Screaming Goth Chick from Naw Which, England because if AJ and Paige win they'll probably create too big a gap between them and the rest of the division.
Rollins def. Orton because Rollins has been losing a lot if I recall right, and the Authority need to start looking like they're not the J.O.B Squad, but I said that last year...
Battle Royal: Big Show, or someone ridiculous for humour like Slater.
Tag Team match: Whoever's the champions because it's on the pre-show