Baldur
During Ragnarök, the veils/barriers between the realms will be broken, so Baldr will be able to escape from Helheimr. After the death of Odin at the fangs of the monstrous wolf Fenrir, Baldr and Höðr came back to life, meeting with the other survivors in the fields of Iðavöllr (Old Norse: Iðavǫllr - "splendour-plain"), where Asgard once lay. There, they shall rule in place of their father.