#2. Seth Rollins vs Murphy should not happen at Hell in a Cell
The storyline featuring the Mysterios and the Monday Night Messiah has taken another interesting turn with the involvement of Rey Mysterio's daughter, Aalyah. WWE has teased a love angle between her and Murphy. There are clear signs that Murphy could turn face and feud with Seth Rollins but WWE shouldn't book a match between them this month at Hell in a Cell.
There needs to be a proper closure to the Mysterio family storyline before WWE goes down the path of the Messiah vs. his disciple, which would surely be an interesting feud. It could help to put Murphy on the map.
#2. Dominik Mysterio vs. Seth Rollins/Murphy should happen at Hell in a Cell
As seen on Monday Night RAW this past week, Dominik Mysterio isn't happy with his sister getting close to Murphy. Seth Rollins is also doing everything to instigate chaos and turn the Mysterios against each other. This could lead to two possibilities; Murphy turns face and joins them or Aalyah turns heel and joins Rollins and Murphy.
At any rate, the better alternative at Hell in a Cell would be a match between Dominik and either Murphy or Seth Rollins. Afterward, he could move forward from this feud while Murphy and Rollins finally began their rivalry.