No, Yuta Okkotsu is not dead after taking Gojo's body. Despite facing a near-fatal situation, he ultimately survived.
Yuta's State After the Battle
Yuta's bold move to transfer his consciousness into Satoru Gojo's body was a high-stakes maneuver in a critical battle. While this strategy allowed him to wield Gojo's immense power, it came with significant risks to his own life.
- The Brink of Death: In a pivotal moment detailed in chapter #263, Yuta activated Gojo's powerful Domain. This intense use of Gojo's abilities successfully caused Kenjaku's Cursed Technique to burn out. However, the extraordinary exertion of this feat pushed Yuta himself to the very precipice of death. The strain was immense, leaving him severely incapacitated and on the verge of succumbing to his injuries.
- Miraculous Recovery: Fortunately, Yuta's survival was confirmed in chapter #269. Through a crucial intervention, his companion Rika utilized Reverse Cursed Technique directly on Yuta's body. This advanced healing ability proved instrumental, pulling him back from the brink and ensuring his survival.
Therefore, while the battle and the unique circumstances of taking Gojo's body brought Yuta incredibly close to death, he was successfully revived and is currently alive within Gojo's body.
