Either way, despite being the only traditional super villain who was announced to appear in Deadpool 2, we haven’t heard anything about how Black Tom Cassidy specifically fits into the story.
In the most recent episode of Meet The Movie Press, host/The Tracking Board editor-in-chief Jeff Sneider mentioned that he’s heard that Jack Kesy was cut from Deadpool 2.
So although the character being cut from the movie is unconfirmed, it’s not terribly surprising if he no longer has any role to play in Wade Wilson’s upcoming adventure.
Assuming this information is legitimate, it’s unclear if Black Tom Cassidy’s removal happened after the main shoot concluded (meaning that someone who attended one of the test screenings noted his absence) or if the reshoots have anything to do with it.