Julia Garner's MCU Silver Surfer Shalla-Bal could be the connection Marvel needs to bring in Doctor Doom and Mephisto

First Steps, be forewarned that we’ll be diving into major spoiler territory. While it was revealed in trailers leading up to The Fantastic Four: First Steps that Galactus was after Franklin Richards,

The Fantastic Four: First Steps ends with Galactus being teleported to the farthest reaches of the universe, with Silver Surfer turning against him to push him through the portal, sacrificing herself in the process.