Most of the matches, I wanted to see kind of won't work at this point anyway.
Would have really loved to see Sheamus vs. Undertaker with The Streak on the line, two great brawlers and two of the best big men in the company in terms of ring ability. Of course, Sheamus would be a heel at the time with Undertaker of course taking on the role of a face. It's too bad, it couldn't happen back when Undertaker was far more fresh, because those two I believe would have put on a great match together.
Randy Orton vs. Brock Lesnar, I would have wanted simply for the billing, but with the titles put together, the fact that they were the youngest champion of their respective titles... kind of makes the entire idea kind of impossible, unless they do break the titles up again at some point, which seems to be the only logical reason for having people carrying around two titles at the moment, unless the plan is to eventually retire one at some point, I highly doubt they'll introduce another new title to replace an already recently created title. Still the idea of "The Youngest World Heavyweight Champion vs. The Youngest WWE Champion" was something I was hoping to see at one point.
Randy Orton vs. Stone Cold Steve Austin, again mostly for the tagline "The Viper vs. The Rattlesnake", I liked the idea when Austin brought up the idea of working a feud with Orton, back at the point when Orton had all this intensity... which he kind of lost along the way it seems.
Jack Swagger vs. Brock Lesnar, I would have loved to see this simply for the amateur backgrounds, I could very easily see shades of Angle/Brock with this, and I believe that both could put on an clinic in the ring, sadly Swagger might never have the booking to push him anywhere near Lesnar, but the guy definitely has the potential, he definitely had the potential in the beginning, I'd imagine if not for the drug bust against him, the gimmick he had, had the potential to do great things for him, especially with Colter by his side.
Seth Rollins vs. Rob Van Dam, Seth is my favorite member within The Shield, his work in the art of high-flying is amazing, I swear, I love watching the guy fly around the ring and how quickly he transitions from one high-flying move to the next, putting him up against RVD seems like just a no-brainer, both are entertaining, both highly creative, needless to say, this kind of match would definitely make me mark out, because I know these two would just kill it for the simple fact of how inventive they would be in the ring together.