Over the last couple days the story was coming out that she had been fired. Most sites were actually reprinting the exact same story. This came out last night. The site says the previous stories were wrong. She wasn't fired. https://wegotthiscovered.com/movies/amber-heard-fired-aquaman-2-rumors/
Amber Heard may have been quietly booted from reprising her role of Mera in the upcoming sequel to "Aquaman" with Jason Momoa. While Warner Bros. has stood in defense of the 34-year-old actress during her ongoing legal war with ex-husband, Johnny Depp, the studio has reportedly fired Heard from appearing in "Aquaman 2," and are allegedly replacing her with "Game of Thrones" star, Emilia Clarke, who had been a fan-requested favorite to replace.
The move comes on the heels of a global push for Heard's exit, including an online petition worth over 1 million signatures strong.
I believe they're going to be soft rebooting Aquaman. They don't want to lose Mamoa, just like they don't want to lose Gal. They're throwing everything else out.