#7 The Undisputed Era arrives and destroys Roman Reigns
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The Undisputed Era has ascended to become one of the biggest factions in WWE history and they have not even entered the main roster yet.
Considering how strongly they have been booked under Triple H's wing, the same can be expected when they make that huge transition to the main roster.
Establishing themselves as a dominant group, Adam Cole must focus on dismantling the core of the business and making a gigantic statement on his very first night.
Attacking Roman Reigns and vowing to take him out for good could coerce the fans to legitimately care about Monday Night Raw and might garner more ratings and viewership.
If there's a momentous time for the Undisputed Era to enter the squared circle and attack Roman Reigns, it would be 2019.