Sorry I must have been on too many painkillers last night.
Anyway, presumably if HBK had been able to come back in 2001, he'd have had a match with HHH.
Would Taker have bounced Test off the card and had a match with Eddie instead? If not, where would he have been used?
Also would having HBK back a year early have affected storylines or potential matches nor would have things played out pretty much as they did?
I don't think things would have been affected overly. Shawn wasn't really put into the mix full-time again until 2004 anyway.
As for Undertaker, you could do him and Kane in a tag match against Haku and Rikishi or something along those lines. The streak wasn't a thing in 2001 so there wasn't the need to have him featured in some kind of notable match anyway. Eddie would be a weird style clash, though.