Deadpool 2 reshoots will supposedly add more Cable (Josh Brolin) and Domino (Zazie Beets), squashing rumors that the additional photography was due to the film getting bad reviews after test screenings.
So what happened was in February or whenever it was, they did additional photography, where, guess what, they added Cable, or more Cable and they added more Domino.
The two main things were Cable, Domino, everyone loved both characters, they wanted to see more.
Early last month, Brolin announced that he was coming back on set for Deadpool 2 reshoots.