>>116154890There already has been one, and one in progress
>>116155439Unless you mean "Will there be one that's fantastical and ridiculous like Anastasia with zombie wizards and talking bats" In which case... m...aybe? Decades more down the line? But who knows, since the Holocaust and Anastasia very different in terms of how they are/were adapted into fictional media.
Anastasia had its own cultural and production history that transformed it from a more serious story to a fantasy with a talking bat and supernatural elements. The 1997 film was adapted from a 1956 film and earlier play, rather than being based on strict history, and Anastasia's story had already been transformed into a fantasy by the 90s with multiple adaptations regarding her survival, musicals, ballets, etc. So Anastasia was already transformed into a myth of a surviving grand duchess rather than a murder victim by that point, separating the story from reality. By the 90s you also have no organization who particularly cared enough or had any authority to speak out against the cartoon's portrayals. It was also an American production, and it's not like the fate of the Romanovs was something which still held much serious international significance or meaning by the late 90s. It was by that point, a quaint royal history for Americans.
In regards to Anne Frank, there are active cultural institutions which would likely still be around (Anne Frank House, etc) to speak out against portraying Anne Frank in a manner similar to Anastasia or 90s direct-to-VHS cartoons, again assuming that we're talking about animal sidekicks and such.
Anne is to an extent already portrayed in some very "twee' ways at times, and lately I've noticed that Holocaust youth and YA fiction has been trending towards including fantastical elements or approaching the topic of Anne Frank in a way that was previously taboo (like that Peter van Pels YA novel) but I just can't see it going that far.