The Undertaker would love to have his first Raw appearance post-retirement. One of the most influential figures who transfigured this industry on his own, must be there at Raw XXX.
Two of the greatest female wrestlers of all-time, Trish Stratus and Lita should bless the massive occasion through their appearance.
Steve Austin will most probably mark his attendance at Raw XXX. The Texas Rattlesnake is also expected to compete at WrestleMania 39.
Since the Hardy Boyz can't be there, WWE needs to have The Dudley Boyz in the mix. D-Von and Bubba Ray changed the entire complexion of tag-team wrestling in WWE.
Fans will go bananas if Bret Hart's music hits on 30th birthday of Monday Night Raw. The excellence of execution revolutionized this business.
The New World Order should appear on Raw XXX to pay homage to Razor Ramon aka Scott Hall, who unfortunately passed away last year.
Edge might be the most obvious name on this list. He's expected to compete at the Royal Rumble and it would be perfect for him to set-up his rumored match against Balor on Raw XXX.
John Cena recently showed up on SmackDown for a tag-team match. However, he needs to be there on Raw's 30th anniversary.