The Last of Us Part II Remastered on PS5 features native 4K output in Fidelity Mode, improved load times, and full DualSense controller integration. It includes the "No Return" roguelike mode, "Lost Levels," and PS5 Pro support for enhanced performance. Upgrades from PS4 are available for $10. 
This video provides a direct comparison between the original PS4 version and the new PS5 Remastered version: