During that same interview The Undertaker also went into more detail about the Montreal Screwjob and was asked why he wasn't put into the match with Bret and Shawn making it a triple threat with The Undertaker going over and getting back the title, because I have heard how Bret wouldn't have mind dropping the title to him.
So at the 1998 Royal Rumble we would have seen The Undertaker drop the title to Shawn so he has it going into WrestleMania 14 against Steve Austin.
In reality at the Royal Rumble in 1998 Shawn retained the title against The Undertaker in a casket match.