Raziel: He never met Ariel, and fell deeper into demonic blar blar never returned to his angelic form and returns to being MEPHISTO FOR A WEEK! (Foreshadowing!)
Asmodeus: Dragged Ariel away from a river at the right time, and other than those two being butt-buddies, not much has changed for him.
Cass: Never hung out with Soren much. Married to Henn.
Teja: Hung out with Soren more, much less of a sourpuss due to it.
Ikuko: Her mother never left Uzza, so she knows how to deal with herself way more better than she does in real timeline.
Dib: DEFEATED ZIM. HA.
And that's all of the ones I've got plans for at the moment.