Suddenly ideas for an old game! The addition of Priam always brings up questions about post endgame Radiant Dawn and as I was pondering this thought came up.
Depending on how dragon blood works Soren will potentially live a veeery long time (i believe it was suggested in game that he ages slowly) which would be sad for him even if he does end up with Ike, since Ike will have a normal human lifespan. So what if Soren stays with his beloved until the end of his life. When Ike dies someone will have to take Ragnell back to Crimea so Soren rejoins Mist’s family and looks after her and possibly Ike’s descendants, becoming something of a family guardian looking after generations and guiding the children to grow up as great as the Radiant Hero.
Soren remains a harsh but caring teacher and every one of Ike’s descendants ends up having a super unrequited crush on their eternally beautiful mentor.