As mentioned before, we know that AJ Styles, Kevin Owens, Kalisto, Rusev, Sasha Banks and the Dudley Boyz are scheduled to be in New Jersey the night of Roadblock, so its doubtful that any of them will appear on the Network special event. There are a handful of wrestlers not committed to either show, so perhaps they could appear at Roadblock, such as Dolph Ziggler, Neville and Mark Henry. But there also are wrestlers in NXT who could make waves at a show like Roadblock. Sami Zayn was the most recent NXT call-up, but its entirely possible another surprise could happen Saturday. At least we know that one of those potential surprise appearances wont be John Cena trying to come back early from injury. But beyond that, speculation is wide open, ranging from anyone to no one.
Scott is a former journalist and longtime wrestling fan who was smart enough to abandon WCW during the Monday Night Wars the same time as the Radicalz. He fortunately became a fan in time for WrestleMania III and came back as a fan after a long high school hiatus before WM XIV. Monday nights in the Carlson household are reserved for viewing Raw -- for better or worse.