WWE officials were impressed with Billy Gunn and his interactions with Shawn Michaels on the 1,000th RAW and the belief is he'll receive at least one match on a future televised show. They were also impressed with his look. Meanwhile, many backstage feel Sean "X-Pac" Waltman didn't appear in great shape on the milestone episode so it is unlikely that he'll be brought back for a match.
Some people were surprised that with WWE's TV-PG directive and Linda McMahon running for United States Senate, officials had no problem having Waltman appear on television despite his involvement with a sex tape years ago. Some people backstage were also joking about how friendly Gunn was with everyone considering that he challenged Triple H and Shawn Michaels to a "shoot" fight years ago.
Source: The Wrestling Observer Newsletter