With Naruto set to take on a life ending transformation to fight Isshiki Otsutsuki, one has to ask what will Sasuke Uchiha's role be in the fight and what actions will he take if Naruto is removed from the story or even worse, dies. It just might be time for the Uchiha to take on a new arm. Fan have long since theorized on how Sasuke would get a second hand and right before the Boruto timeskip might be the perfect time