I still think it's about 10 years too late for Sting/Undertaker and I don't want to see Sting in a WWE ring wearing a t-shirt to hide that his physique is no longer where it use to be besides that both men are pretty broken down at this point to where it'd take a miracle to pull out a good match between them and neither is capable of pulling carry duty. I've always got Sting's concern about how he'd be handled, especially back then but I seriously doubt they would have treated him as Vince did other WCW guys (except Goldberg, his bitching on how he was handled has always been ridiculous and show's how big of a mark he is for himself) because Vince had wanted Sting for years and respected his loyalty, Sting was and to an extent still is money. At worst he would have been treated on a level of Ric Flair.
But if Sting does show up for WM, I hope he gets in a great workout regimen and manages to get into better shape at the very least. Aside from Undertaker there's money in Sting vs Cena as well, could perhaps play off how back when Cena first started out he was compared to Sting. Amused me hearing some of that because that was the first thing I thought back when I first saw him in 2000.
Anyway, he works a limited schedule in a final run, gets inducted in WWE's HOF next year.
As for the Rumble and Orton/Cena #13,532 I predict the winner will be I don't give a shit.
Person that lasts the longest in the match: Punk, kind of obvious they're going to make him the "Ironman" this year. But he'll be eliminated before the final four by NAO on a Triple H distraction.
Person that eliminates the most people: Reigns so we can hear Cole's fed masturbatory lines from Vince informing the plebs that Reigns is the second coming.
Surprise Entries in this years Rumble: Sheamus, Jake, RVD, Jericho
Final Four: Batista, Bryan, Del Rio, Sheamus (number 30)
Most likely winning the Rumble: Bryan if Vince is smart but probably Batista. I could see either Del Rio getting eliminated and then distracting or pulling out Batista or Bryan eliminating Sheamus and then a pissed off Sheamus turning heel and taking Bryan out in a heelish manner. Revealing Monday that Sheamus is aligned with the Authority to ensure Bryan stays in his place and what better guy than the one who beat him at WM28 in 18 seconds. Then WMXXX being Bryan's redemption as unfortunate as that might be.
That said, I'd rather HBK come out of retirement for a match with Bryan, I think it'd be a much bigger deal at WrestleMania.