How I Met Your Father: Who Is the Father? Theories
Who's the Father On "HIMYF"? The Most Likely Contenders, Ranked
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Ian seems to represent what Ted had with his ex, Victoria. Even though they came so close to being together a couple of times, they just weren't each other's Lebenslangerschicksalsschatz (a German phrase that means "lifelong treasure of destiny").
Similarly, Sophie and Ian seem like endgame in a lot of ways, but something always gets in the way, the biggest thing at the moment being that he's on the other side of the world. Still, nothing is impossible. Ian makes a solid contender for the titular position.