The one-year anniversary of House of the Dragon's Season 2 finale came and went in August 2025 without any big news about the upcoming third season, despite production being underway. The show won't arrive on HBO before the end of the 2025 TV schedule, and A Knight of the Seven Kingdoms is likely to premiere next year before Season 3. The long wait means actors haven't been able to say much about what is coming to avoid spoilers, and Matt Smith's response in a recent interview makes me suspect that he's tired of not being able to talk freely about where the show is going next.
Matt Smith recently completed a WIRED Autocomplete Interview, and couldn't say much when he got to the question of what he's working on right now:
