A recent Honkai: Star Rail leak is potentially teasing the element for upcoming Fate/Stay Night crossover character Saber, rumored to be launching during the Version 3.4 update. HoYoverse made waves last summer when the developer announced the first crossover content coming to its massively popular sci-fi RPG with the beloved Fate/Stay Night franchise. The crossover was said to be launching sometime during 2025, though HoYoverse has not shared many details about what the Fate collaboration will contain. Now, however, new leaks are hinting at one particularly exciting aspect of the crossover.