#1. Sting

But, one of the biggest surprises that could happen at the WWE RAW Reunion show is if Sting returns to WWE, which would most likely set up a clash with the previous person in this list - The Undertaker.
Sting appeared last on RAW earlier this year, during Ric Flair's 70th birthday celebrations, where he was one of the guests of the show. We could maybe see Sting return unannounced and attack The Undertaker, which would be the perfect way to set up a match between the two legends, just under a month before SummerSlam.
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This is a dream match that needs a big setting like SummerSlam and WWE should use this opportunity to set up the match.
Sting wants this match to happen, The Undertaker possibly has just this one dream match remaining, while WWE will love the interest that this match-up brings to their product.
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