#4 WWE is actually considering the match
What if Orton's tweet is a set-up for a major segment on SmackDown Live's big debut? The company loves to do these kinds of segments on milestone episodes. We got to see Evolution getting together on SmackDown 1000 last year.
Maybe, WWE is seriously considering this match for next year's WrestleMania and wants to start the buildup on the historic episode of SmackDown Live. Last year's Evolution segment led to Batista meeting Triple H at WrestleMania 35. Hopefully, this tweet leads to a segment on SmackDown Live, which eventually results in a long build to a singles match at The Show of Shows.
Also read: Bray Wyatt reveals why The Fiend is attacking legends
#3 The Rock = guaranteed buys
The Rock's presence means guaranteed buys for the show he is a part of. When he faced off against John Cena at WrestleMania 28, the show broke a five-year record of the most number of WrestleMania PPV buys, which was earlier held by WrestleMania 23. The Rock coming back for a match at WrestleMania 36 would be a good business decision for all parties involved.
The fact that he will wrestle Randy Orton, with whom he's never had a singles match, will only help WWE bag more PPV buys for the event. WrestleMania is always built up around never-before-seen matches such as these, and it would be wise to put this contest as one of the marquee matches on the show next year. Orton knows he could earn a gigantic payday for the match, and maybe this could be the reason why he's trying to stir things up.