No, there is no confirmation that My Adventures with Superman Season 3 is releasing specifically in May 2026.
Season 3 was announced in 2024 and has been in post-production (with ADR recording mentioned as recently as early to mid-2026). Reliable sources, including the show’s fandom wiki and multiple reports, confirm it will air in 2026 on Adult Swim (Toonami block), with episodes also expected on Max shortly after.
However:
- No official premiere date or month has been announced by Adult Swim, Warner Bros. Animation, or the creators.
- Jack Quaid (voice of Superman) confirmed in April 2026 interviews that the season is coming, he’s been doing ADR, and he’s seen footage—he described it positively (possibly the funniest season) but gave no exact timing.
- Past seasons premiered in summer (Season 1 in July 2023, Season 2 around May 2024), and some speculation points to a possible summer, fall, or later-2026 window, but earlier hopes for 2025 were delayed into 2026.
- As of late April 2026, there’s still no precise release schedule.
2026 is the confirmed year, but May has no supporting evidence—it’s more likely to be a summer/fall slot or whenever post-production fully wraps and the network slots it. Keep an eye on official Adult Swim or DC announcements for updates, as things can shift.