The implication, and it's only ever just that, is that Elsa and Anna's mother is herself somehow attuned to the magical forces such that Elsa was given the gift of superpowers. (Why Anna never received such powers is equally vaguely defined: just as Elsa and Anna's father had no powers, so too would she be power-free.
Despite her daughter Elsa having magic ice powers, Queen Iduna does not appear to wield any sort of magical abilities, making her a normal human being. Since she is a monarch, it is most likely that she is skilled in politics and diplomacy.
Under this stress, Elsa accidentally injures Anna with her powers. Their parents, the King and Queen of Arendelle, take Anna to the magical trolls who heal her but also alter her memories so that she has no knowledge of Elsa's powers. This fright led the King and Queen to isolate both Elsa and Anna from the kingdom.
Unbeknownst to Agnarr, Iduna is actually a Northuldran and was the girl that rescued him on the day of his father's death. Because of the kingdom's negative feelings towards the Northuldra, Iduna kept her heritage a secret for many years, though she finally told him everything shortly before their deaths.
Why didn't Elsa's mom tell her husband she saved him?
Due to the bad blood between their people, Iduna kept both her heritage and her rescue of Agnarr in the forest a secret for many years, though she finally confessed everything to him shortly before their deaths.
It was after that the decision was made to fully commit to the voice calling to Elsa being that of her mother, Iduna. As Marc Smith, Frozen 2's Director of Story, notes in the documentary, the idea "unifies the movie" since it starts with a flashback featuring Iduna and Agnarr, and it brings those elements together.
She died and was reborn to take on her true form like has happened in so many stories before. With that transformation, Frozen 2 has made Elsa an immortal spirit now. Like how Frozen 2's other four spirits appear as animals but more than just that, Elsa still appears human but is more than just that.
Elsa discovered that the call was used by Iduna to summon the Wind Spirit to save Agnarr. Elsa also discovered other memories of her mother, from Elsa's own childhood and those that took place before she was born.
It has a slot for November 2024 and November 2025 for “untitled Disney animation”, according to Business Insider. Again, assuming that Frozen 3 is following the same release pattern as its predecessors, it's safe to bet that it will be released November 26, 2025.
Frozen explicitly shows the audience that Iduna and Agnarr's ship has sunk, killing both of the young princesses' parents. It's later revealed in Frozen 2 that the king and queen were traveling to Ahtohallan, a magical glacier in the north, and Frozen's sequel again confirms that Anna and Elsa's parents died at sea.
Where did Anna and Elsa's parents go when they died?
Elsa and Anna's parents didn't die by shipwreck where we thought they'd died by shipwreck (always a fun, uncomplicated topic for kids!); they actually died by shipwreck trying to journey to Ahtohallan, the mythical island they believed held the answers to Elsa's powers.
The ice from which the palace is constructed is capable of taking on different colors, such as purple, blue, red and yellow, based on Elsa's emotional state (blue when she is happy or neutral, yellow or amber when she is angry, and red when she is frightened).
Spurred on by the awakening of magic, the pair are forced to uncover the truth behind their parent's disappearance and a surprising connection between Elsa and her mother. Frozen 2 revealed that Elsa and Anna's mother was also able to connect with the magical powers that help make Elsa the lost "fifth element".
While Iduna's selfless actions were the reason Elsa was bestowed with ice powers to begin with, her daughter received powers instead of her because beings are born with elemental powers in the Frozen universe and don't acquire them later on in life.
According to Myth: A Frozen Tale, the fifth spirit is also known as the “human spirit”, but it is assumed to have been represented by humanity in general before Elsa and Anna's births.
Years later, Elsa goes on a quest to discover what happened to anger the forest spirits, and she eventually comes to the very river full of memory that her mother spoke of, a place called Ahtohallan.
The implication, and it's only ever just that, is that Elsa and Anna's mother is herself somehow attuned to the magical forces such that Elsa was given the gift of superpowers. (Why Anna never received such powers is equally vaguely defined: just as Elsa and Anna's father had no powers, so too would she be power-free.
In original drafts, Elsa was intended to be even darker than her literary counterpart, being a ruthless evil monarch that sought to rule the nearby kingdom. Her backstory changed often, but the most common one was that she was a mischievous rebel as a child, who was ostracized due to her behavior and powers.
Elysium is the first daughter of Elsa and Jack Frost, protagonists in Frozen and Rise of the Guardians. She is also a Princess of Arendelle and Junior Guardian of Winter. She is the older sister to Elise and is the first heir to the Throne of Arendelle.
Anna's parents rush her to the sacred realm, where discussions with the trolls reveal that Elsa was born with her powers/ depigmentation and deafness, rather than them being due to illness or accident. Grand Pabbie troll heals Anna but removes her memories of Elsa's magic.
Audiences have come to know Anna and Elsa as sisters whose parents tragically died in a sea storm, but Anna was actually a peasant girl in Frozen's initial drafts, and Elsa was a dark snow queen. They were also not related in any way. Originally, Anna had planned to go to Elsa to have her heart frozen.
