The 50-year-old actress played serial killer target Sidney in the first 1996 instalment of the series and returned for each of the sequels except the 2023 sixth entry.
She was happy to return for the next movie because it is going back to its roots after focusing primarily on a younger generation of stalked teenagers in recent films.
"We are going to follow Sidney," Campbell told Entertainment Tonight.
"They did pitch the concept to me, and it's the reason that I jumped on board.
"I love these movies, they are so much fun to be a part of.
"I'm so grateful for them, I could never have imagined being a part of a movie that would have lasted this many decades."
Campbell - who hasn't received a final script for the film - is "excited" for fans to see what director Kevin Williamson has in store.
"The fandom is nuts, they are incredible and very passionate about these films. I'm excited to give them a new one!" she said.
No other cast members have been confirmed for the sequel as yet, but the actress stayed coy as to whether any other long-term characters could be returning, simply teasing: "May-haps".
The Party of Five actor opted not to return for Scream VI due to a pay dispute, but Spyglass Media Group resolved the issue.
"I'm super grateful that they came around on it," she said.
"Scream VI just didn't feel right. I couldn't after this many decades of carrying a franchise, to feel undervalued and underpaid and to know that it wouldn't have happened to a man in that way.
"It just wouldn't make sense for me to walk on that set. So, I'm glad I stood up for myself."
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