If Bushwhackers are Hall of Fame worthy for about five years of mid-card amusement, then Santino would be eligible, or Hornswoggle.
There are better candidates as filler, for the sake of argument: Rey, Mark Henry, Big Show, Kane, Tommy Dreamer, Dudleys, Hardys, Christian, New Age Outlaws, Rick Rude, British Bulldog, RVD, Nash, Hall, Sid, Angle, Jericho, JBL, Goldberg, Sting, DDP, Bischoff, Heyman, Vader, Steiners, Jarrett, Luger, Miss Elizabeth, Shane Douglas, Funk, Rhino, Goldust...
The only ones from that list with a chance of being the headline induction for the year are Jericho, Angle and Sting.