It very well could take away from some of the excitement if one has to follow the other because when you have not one but three (four if Bryan/Sheamus get a little more hype) HUGE matches then you run the risk of fans getting too tired to care when the final match is going on. Undertaker VS Triple H will be an epic Hell In a Cell match that will leave the fans tired from all the cheering. I was there at Wrestlemania 25 and while I doubt this match will be as good as Taker VS Michaels 1, it will likely drain the crowd. A less important match should follow it so that the fans can calm down before what comes next, whether that be the world title matches or Cena & The Rock. There's plenty of options. The divas, the tag team titles, the GM match, midcard titles.... Even a random filler match could suffice.
They could bring out the Hall of Fam inductees after the match too. Then the fans have a bit of a break without having to move a midcard or filler match further up the card than necessary. Altough if Taker/Trips, Jericho/Punk, and Cena/Rock are going to be the final 3 matches then WWE will need to come up with a way to prevent the fans from getting too worn out from all the cheering. Between Taker/Michaels 1, Cena/Edge/Show, and seeing Stone Cold after the Hall of Fame segment, I remember being extremely drained by the time Trips/Orton began. Having Trips/Taker towards the end with the Hall of Fame segment next, followed by the WWE Championship match, then a midcard title, and finally Cena/Rock last could be a card placement that may work.
They could bring out the Hall of Fam inductees after the match too. Then the fans have a bit of a break without having to move a midcard or filler match further up the card than necessary. Altough if Taker/Trips, Jericho/Punk, and Cena/Rock are going to be the final 3 matches then WWE will need to come up with a way to prevent the fans from getting too worn out from all the cheering. Between Taker/Michaels 1, Cena/Edge/Show, and seeing Stone Cold after the Hall of Fame segment, I remember being extremely drained by the time Trips/Orton began. Having Trips/Taker towards the end with the Hall of Fame segment next, followed by the WWE Championship match, then a midcard title, and finally Cena/Rock last could be a card placement that may work.