New Seven Hearts

According to Yen Sid, the pure lights in the Princesses of Heart have moved on to new hosts, known as the New Seven Hearts (ニューセブンハート), with the exception of Kairi, who did not pass on her power. As Yen Sid further explains, this happened shortly after they were used to reveal the Final Keyhole, confirming that the seven lights "reincarnate". The real Organization XIII planned to use the New Seven Hearts as a backup, and would attack them in case the Seven Guardians of Light could not find all of their members.

Kingdom Hearts III
Initially, Marluxia viewed Mother Gothel as a crucial guardian of the new Princess of Heart, Rapunzel. Marluxia went through means with Mother Gothel to help retrieve Rapunzel back to the tower, where Rapunzel would be locked there for all eternity. Eventually, Mother Gothel's abusive and manipulative personality poised as a threat to Marluxia's ideal to protecting Rapunzel.

After Elsa's ice palace was constructed, Larxene expresses her interest to Sora of Elsa being one of the new Princess of Heart. Larxene later questions if Elsa might possibly rely of darkness as well.

After saving Elsa from Han's lethal blow, Anna was frozen to solid ice due to Elsa's ice magic earlier. Because the sacrifice was out from an act to 'true love', Anna recovered for the frozen curse and was able to reconcile with Elsa. Larxene views this sacrificial act as a possibility of two Princesses of Heart within a same world, as Elsa and Anna brims with sisterly love.

Known Hearts

 * Kairi
 * Rapunzel
 * Elsa
 * Anna