MITB this weekend seems pretty stuck in terms of booking. Reigns wins the contract (even though he doesn't need it) then cashes in and a) goes heel on ambrose or b) returns the favor to rollins. There just doesn't seem to be anything else.
Also, doesn't Cena need to win here? Screwjob?
Then again rollins wins and reigns doesn't cash in ignoring the last month because reasons.