With The Shield banned (if they interfer, Punk is no more the champ), what if Brock Lesnar interfer and cost The Rock the WWE championship ? (building The Rock vs Brock Lensar at Mania)
What if Brock Lesnar cost CM Punk his WWE championship ? Can Punk vs Lesnar really happen at Mania ?
What if The Shield interfer, whatever Vince said on RAW, and cost Punk the WWE Championship, so the title is vacant ???? (probably won't happen knowing the WWE...)
Also, don't expect for 1 second, a clean win for CM Punk, this is just not possible.