Question: The events of Scream VI take place around Halloween, but it doesn't specify what year. A news reporter said that the Woodsboro killings took place in 2022 as if they happened a year ago, and Scream VI was released in March of 2023. So, do the events of Scream VI take place on Halloween of 2022 or 7 months in the future after the film's release date?
Answer: Using some conjecture, if the film states the last killings took place in 2022 and treats it like "last year," you can assume it takes place around Halloween 2023. Films are allowed to take place in the future. They don't have to be set around their release date. So how is this a mistake?
Question: What happens to the lady after the film ends that has her head in the hole? As during the film, she shows she has no morals. In the rest of the movies, you never hear her name mentioned or what happened to her. But surely, with him trapping her and taking the money at the end, it would piss her off enough to want to get the money back and seek revenge on him.
Answer: There's no definitive answer. It's left purposely ambiguous, presumably in case they want to bring the character back in the future. (There is a deleted scene on the Blu-Ray showing the door opening on its own once the countdown hits zero, so presumably she is able to escape.) As for her coming for him... we simply don't know. It's possible she'll show up again in a future film. But you also have to factor in that John has a LOT of evidence on her criminal misdeeds... so he likely could have her arrested and jailed if she comes for him.
Answer: I think this is more "trivia" than mistake. There's no error in a film taking place a bit further ahead in time than in its release date.
TonyPH