Plot details -
They should just call it 'Son of Goose' see below.
"So Top Gun, the 32-year-old movie (faints) that made Tom Cruise a mega-star, centered on his character’s friendship with a fellow fighter pilot callsign Goose, played by Anthony Edwards. And in an emotional scene that I still weep openly about to this day, Goose is killed. (#RIPGoose.)
Fast-forward to 2018. Now, improbably, a Top Gun sequel (called Top Gun: Maverick, after Cruise’s character) is in the works. And it appears the film will focus on Maverick mentoring Goose’s son. Via The Hollywood ReporterThe sequel starring Tom Cruise and Val Kilmer is looking to cast the son of Maverick’s wingman and best pal, Goose (played by Anthony Edwards in the original)."
https://www.hollywoodreporter.com/heat-vision/top-gun-2-casting-key-role-gooses-son-1123513