I think the triple main event you mentioned could end up being the top marquee matches (except with Punk winning the Rumble as rumored, not Cena... I could see it coming down to Punk and Cena as the final two and Punk tosses Cena out to everyone's surprise), but there's a handful of different ways this Mania could go so it's hard to say. Punk winning the title seem somewhat plausible, but what about Bryan? Bryan/HHH almost seems like a given and after Bryan defeats HHH and helps shift complete power and control back to the hands of Vince McMahon, where does he go then? The whole endgame to this Bryan vs the World (i.e the Corporate glass ceiling of WWE) angle seems to be that Bryan will prove them wrong and reclaim the WWE Championship and show that he is an A player. That can't happen when Punk is the one headlining and winning the title at Mania. All of this also makes me believe that Bryan will either defeat HHH before Mania in a grudge match and then go to win the title there (Cena could be the guy that Vince chooses to represent him against HHH at Mania) or the Bryan/HHH match at WM30 also has the title at the center of it. Either Bryan walks in as champ and retains the belt against HHH or the title somehow finds it's way around Triple H's waist and it's he who Bryan has to defeat to finally reclaim it. I can picture HHH holding the title up and saying that if Bryan really does want it back, then he will ultimately have to go through him.
I'm skeptical of them combining the WWE Title match and the power struggle angle into one, though. But I'm even more skeptical that Punk is being given the title over Bryan at Mania, which would mean Bryan isn't getting it anytime soon, perhaps an epic Summerslam 2014 main event between Punk and Bryan where Bryan goes over then but would they really play out Bryan finally getting his well deserved reign as champ all the way to next summer? What would Bryan do between WMXXX and Summerslam 2014? (I'm starting to ramble here so I'll move on.)
So, I could just as well see this sort of card playing out: Cena/Undertaker, Punk/Lesnar and Bryan/HHH.
Elsewhere on the card, I'm thinking Sandow will cash in his briefcase to become World Heavyweight Champion. The 30th Wrestlemania is the ideal place to do something historical that has never been done before and ever since the inaugural MITB match at Wrestlemania 21, no one has yet to cash in AT a Mania. It seems like such an obvious moment and people keep waiting for it but fourteen MITB matches (six of which were at Mania in the past) and thirteen cash ins later, its yet to happen. Maybe Ziggler is champion by then and retains his title only to be cashed in on Sandow. Someone finally cashing in on the big stage and a first ever World Heavyweight Champion being crowned in the process is truly deserving of a Wrestlemania moment that will be replayed in the future. As for who Ziggler is wrestling beforehand, maybe Orton. With the three aforementioned matches above, that leaves Orton out of a big match and just holding his dick doing nothing despite his important role in the middle of everything happening right now, so putting him in a world title match with Dolph Ziggler (Ziggler could have won the belt by then and Orton wants to win the WHC to make up for losing the WWE Title) is a sure way of making sure he still lands in a semi-important role. I'm fine with Ziggler/Orton as they've produced great matches in the past. Ziggler retains, Sandow cashes in afterwards.
I could also see The Shield splitting and ending up in a triple threat match with each other or something, or maybe it'll be just Rollins/Ambrose with Reigns going off to do something else. Maybe Goldberg and Ryback really will happen as well, who knows. Could be interesting to see.
So, that's one card I could see happening - Cena/Undertaker (promoted as Undertaker's retirement with a slogan of "Win, Lose Or Draw, The Streak Ends On April 6th, 2014"), Daniel Bryan/Triple H (which centers around the WWE Title as well as who will ultimately control the WWE), CM Punk/Lesnar, Dolph Ziggler/Randy Orton (with Ziggler retaining the WHC and then getting cashed in on Sandow afterwards), either Ambrose/Rollins or Ambrose/Rollins/Reigns, Goldberg/Ryback (maybe), etc.
