Personally, I think Zelda and Link still end up together in Age of Calamity. They literally flirt constantly in that game....
Just because Mipha is alive doesn't mean it would happen 🤷♀️
Not to mention that the armor description for the Zora armor is basically making a joke of it in English ("It's probably fine to be wearing this. Probably.") and "Is it really okay to wear this??" in Japanese. Because that's toootally how someone who accepts a proposal acts. Uh huh.