So we have 5 matches on the main card. They'll have to add at least 1 or 2, as I don't see Brock/Cena going too long, same for Cody/Show. Sheamus/D-Bry will likely get a lot of time to make up for Mania, Punk/Jericho can go a while and same for Kane/Orton especially with falls count anywhere. Assuming those three get a total of an hour and 15 minutes or so put together, 15 for Brock/Cena, 15 probably for promos and vids, 10 for Show/Cody, plus backstage segments, that still gives us at least half an hour.
They'll have to do something with Berto. Probably the divas, and Funkasaurus vs. Zwaggler.
Decent show. I like that they put Santino vs. Miz on the pre-show, they need to do more of that.