In an interview with Empire Magazine, director Simon Kinberg revealed that one scene in the X-Men: Dark Phoenix trailer does in fact reveal Michael Fassbender's Magneto building the iconic mutant homeland, Genosha! As Kinberg explains:
"What you’re seeing is the beginnings of Genosha. That’s where Erik is when we meet him. It’s like Magneto’s Israel – a land built for mutants, a homeland where they can be safe and self-sufficient. Jean finds him there because what’s happening to her is making her do destructive things, and she doesn’t know why. The only person she’s known who has done destructive and lethal things in the past but came back from it is Magneto. She feels he alone can give her answers because he’s lived both sides. He’s lost control and killed and hurt people, some of whom he even loved, and yet he’s also found a measure of peace and that’s what she’s searching for.”
No more Lawrence, goofy timelines, Singr, and an untalented biracial playing Storm ( no shade to Halle because I like her just not as Storm)
