What is the source that "we know" the Six Flags Mexico coaster is next year?
It seems very plausible that the 7 new coasters for 2025 includes their two delayed projects (and that's why they weren't specifically mentioned in the press release). If the SFMM and SFM projects were on the typical Six Flags delayed construction schedule, Zimmerman might have come in and said no, we aren't doing that any more and delayed them to 2026 so they open with the parks "on time."
It seems very plausible that the 7 new coasters for 2025 includes their two delayed projects (and that's why they weren't specifically mentioned in the press release). If the SFMM and SFM projects were on the typical Six Flags delayed construction schedule, Zimmerman might have come in and said no, we aren't doing that any more and delayed them to 2026 so they open with the parks "on time."