(Alessia/Morihaus/Pelinal
There's no mage here or rogue here.
And there are two warriors here. Vivec being a warrior-poet and a dual being, he's not going to fit neatly into anything.
But these aren't necessarily enantiomorphic pairings, anyways.
The idea of the archetypes is a smokescreen because there are actually four roles, not three. And of those, two opposing 'twins' are the most important (Anu and Padomay).
To recreate the Tiber Septim situation, you need a general, not a thief.