He could probably gain the ability to phase through objects. Just like wraiths are often depicted as being able to pass through solid things. This would give him an edge in combat and also in sneaking around.
One possible new ability is the power of invisibility. Wraiths are sometimes associated with being unseen. Naruto could use this to spy on his enemies or surprise them during battles. He could also use it to play pranks on his friends in a more light - hearted way.
Naruto might gain the power of draining the life force of his enemies. This is a rather dark ability but fits with the wraith theme. However, he would likely struggle with using such a power as it goes against his nature. He would have to find a way to either control it or transform it into a more positive form of energy.
Chapter 91, "Jiang Yan is Number One on the Trending Searches Again?!", is the clearest early answer because it turns Shu Yan's situation into a concrete plot event.
Chapter 192, "He will definitely not let go of this detestable woman!", is the clearest early answer because it turns Jiang Shixu's situation into a concrete plot event.
Chapter 216, "I'm the Director, I Call the Shots!", is the clearest early answer because it turns Sun's situation into a concrete plot event. The chapter gives readers a real answer by opening on The production team also took advantage of the situation to start an...
Chapter 348, "Seeing You Reminds Me of My Cousin", is the clearest early answer because it turns Shanshui Pear Garden's situation into a concrete plot event. Early on, Jiang Li's voice wasn't loud, but it carried enough power to....
Chapter 121, "Jiang Li Gains 5 Points for His Meritorious Rescue!", is the clearest early answer because it turns Jiang Li Gains's situation into a concrete plot event. It opens with Seeing that Wen Jiaojiao's condition had improved significantly,...
Chapter 375, "Jin Siyue and Dogs Not Allowed Entry", is the clearest early answer because it turns Jin's situation into a concrete plot event. Early on, He Pingzhang spoke eloquently, but the moment he opened his eyes,....
Chapter 50, "Girls Help Girls!", is the clearest early answer because it turns Are's situation into a concrete plot event. The chapter gives readers a real answer by opening on [666, if good scores determine rankings, is Flash Change's production...
Chapter 420, "Who Says the Attacker Can't Attack the Attacker?", is the clearest early answer because the buildup finally cashes out in a real clash. The chapter gives readers a real answer by opening on After choosing to defend, Guan Xiong quickly made a decision.
Chapter 103, "Selling a Kidney to Repay Debt", is the clearest early answer because it turns Zhao Lang's situation into a concrete plot event.
Chapter 67, "You Can Still Pick Mushrooms?!", is the clearest early answer because it turns Xiang Hao's situation into a concrete plot event. A useful checkpoint is the way the scene starts with I'm pissed," Jiang Yan cursed again, "These people are too much,...