As per the recent reports, The Visionary Seth Rollins was originally set to win the WWE Championship at Day 1 event. But plans have changed last minute and that resulted Brock Lesnar to win the WWE Title in fatal 5-way match by pinning Big E.
Dave Meltzer of Wrestling Observer Newsletter reported that since WWE Title will headline one night of WrestleMania, Seth Rollins was originally set to win the WWE Title at Day 1 to face winner of Royal Rumble, with Big E as favourite. But there also possibilities of Kevin Owens and Bobby Lashley. He also stated that the plan remained same and getting there would be different.
”Because there are two nights of WrestleMania, they need a WWE title match to headline the other show. The plan for that was originally Seth Rollins, likely against the winner of the Royal Rumble, with Big E the favorite, but Kevin Owens and Bobby Lashley were also possibilities. The match in that position may remain the same, but getting there is different,” said Meltzer.
Meltzer also noted that the reason for Seth Rollins moved to Monday Night Raw from SmackDown was to put the WWE title on him from Big E.
”When Rollins was moved from Smackdown to Raw, the original plan was to transfer the WWE title from Big E to him. The decision was then made to do the change on the 1/1 show in the four-way.”