How do you figure that?
Despite not having a greenlight, it's still generating a ton of interest from Fox. Which wouldn't be extraordinary if the first one didn't make $400 million worldwide and 3 times it's budget. Still being a slight financial disappointment, it just looks like Fox is trying to be more cautious. There's no production conflicts or cast fallouts. Now that a writer has been hired, it just works to be additional fuel for the project.
Unlike my Meg
film, which has hired several writers, producers, directors, etc. But everything keeps failing because there's no successful contemporaries to justify it's budget. And it hasn't received any verbal commitment from a movie studio, which I believe Fox has given Prometheus 2 or whatever it's called several times.