Now, we have an official description of the film, a rare bit of news from Marvel itself:

In an update this week, Marvel Studios finally confirmed that Julia Garner will play the Silver Surfer in The Fantastic Four: First Steps.

The first official synopsis for ‘THE FANTASTIC FOUR: FIRST STEPS’ has been released: Set against the vibrant backdrop of a 1960s-inspired, retro-futuristic world, “The Fantastic Four: First Steps” introduces Marvel’s First Family—Reed Richards/Mister Fantastic, Sue… pic.twitter.com/gZK7kOJLxq

The synopsis comes courtesy of official press material, and it reads: "Set against the vibrant backdrop of a 1960s-inspired, retro-futuristic world, Marvel Studios' The Fantastic

First Steps are now set. An official synopsis for Marvel's upcoming Phase Six movie recently dropped in an official Disney+ press release, hyping up the team's alternate reality, family dynamics, and cosmic threats they must battle together.