Impa debates are at least more lively and interessting than Fire Emblem debates.
Speaking of, we can combine the two if we'd like?
I mean, Impa could totally fit into the Fire Emblem Universe. She could be a Trickster, or a Mage Fighter. Or a FE9 Sage, with Knives, like Callil. Or be a totally different class alltogheter, something in the likes of a Whisperer (Sothe, FE:RD) , Rogue (FE8), Assassin and Sage.
She could be the Seth / Titania- like character, but in Sage form. Protecting Zelda from harm. She seems like the ideal Zelda 'Jeigan'-like character. But like Seth and Titania, able to kick serious ass. Or to nerf her a little, give her good Speed and Skill bases, but low Strenght and Magic, but higher growths in Strenght and Magic.
So, list of Zelda characters in Fire Emblem classes:
Link - Hero (like Ike, placeholder for Lord title). Uses Swords before promotion, and Swords and Bows after promotion. Also has a Hammer-like weapon after promotion, but doesn't use other Axes. Like Celice in FE4, he can mount and unmount. This doesn't change his stats outside movement however.
Zelda - Princess (placeholder Lord title name). Uses Magic before promotion. And Bows and Staffs after promotion. Can use Light Magic and Anima Magic.
Impa - Sage (explained above, could be a new class to). Magic and Knives before promotion, additional Swords and Staffs after promotion.
Ganondorf - Dark Lord (unique class of coarse). Can use Swords, Lances, Axes and Dark Magic.
Tingle - Dancer (can promote however)
Other universes we can turn into Fire Emblem fashion?