A new Honkai: Star Rail leak is hinting at the next boss set to come to the game's Apocalyptic Shadow game mode in Version 2.6, featuring a fan-favorite Penacony boss. The HoYoverse sci-fi RPG offers players a variety of endgame content to tackle once the main story is finished, with its many game modes receiving regular updates. From the roguelike Simulated Universe to combat challenges like Memory of Chaos and Pure Fiction, Honkai: Star Rail offers multiple chances for players to test out their most powerful teams. Now, a popular recent game mode is set to receive a new update soon.