As of the latest available information, Marvel Studios has indeed scheduled an untitled movie for release on December 15, 2028. This would be the fourth feature from Marvel Studios set for release in that calendar year. Marvel Studios often plans its film slate years in advance, and it is not uncommon for them to have multiple releases in a single year, given their expansive cinematic universe and production capabilities.
For the most accurate and updated information, you can refer to Marvel Studios' official announcements or reliable entertainment news sources such as Variety or The Hollywood Reporter.
