#3 Biggest SummerSlam ever
If the current champions remain as they are until SummerSlam 2019, the title-merging matches would be as follows: Seth Rollins vs. Kofi Kingston (Universal-WWE merger), Samoa Joe vs. Finn Balor (United States-Intercontinental merger), Zack Ryder & Curt Hawkins vs. Daniel Bryan & Rowan (Raw Tag Team-SmackDown Tag Team merger).
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The Raw Women’s Championship and SmackDown Women’s Championship would also need to be contested, which means Becky Lynch would have to lose one or both of her titles before the August pay-per-view.
Now, regardless of the people involved in the matches, the mere fact that titles are being merged would make this one of the biggest SummerSlam events in history.
Survivor Series has felt like a big deal in recent years (more on that shortly) when the build has centred around non-title Champion vs. Champion matches, so can you imagine if SummerSlam is centred around Champion vs. Champion matches when titles are actually on the line?