There are two thing I'd change..
Kane vs. Orton becomes Kane vs. Zack Ryder. Ryder was red hot and deserved an one-on-one match at Wrestlemania.
Also, instead of Sheamus vs Bryan(C) in 18 seconds we get Sheamus vs Bryan(C) vs Orton for the World Heavyweight Championship in an actual match. Why? I can understand that the company felt that Sheamus and Bryan were not big enough names to go on par with the rest triple main event. So I'd add Orton on the mix, to increase the name value and make it seem like a real World Championship match. After all, Sheamus, Bryan and Orton were the top three dogs of Smackdown at that time.
Y2J wins the Rumble. No question about that. Sheamus wins a #1 Contender Elimination Chamber match, while Orton and Bryan battle it out in a draw at No Way Out. That's Orton's reason to be in the match. The result stays the same, with Sheamus winning.