The E' has options here
I know that the scenarios I am about to say will most likely get shot down. But after watching raw, we instantly thought Brock/HHH II . Two rematches of last year in a row? I don't think so. This is Wrestlemania 29, not Wrestlemania 28 part 2. I had this idea play in my mind where it would be
Brock and The Shield w/ Heyman (as manager) vs. HHH, Shawn Michaels, Billy Gunn and Road Dogg. w/ Mr.Mcmahon (as manager)
I personally think that would get a lot more people into the match, and there would be some pretty big pops.
Also, if they could find someone else to wrestle on Brock's team, (most likely not CM punk or Brad Maddox) then they could put X-PAC in the match too.
Honestly, I believe all of the pieces are there, and I hope WWE considers this.