Y'all would have better luck guessing the potential love interests by analyzing the potential conflicts in Inquisition than by tallying up genders, classes, and races.
Take one of the central conflicts from DAII, like freedom vs. security. You have Anders, who is invested in freedom because he's trapped in a system that curtails it. You have Fenris, who is invested in security because he was harmed by the forces the system is designed to corral. You have Merrill, who is a direct threat to security and/because she operates beyond the bounds of the system. There's Sebastian, who is invested in the status quo. And you have Izzy, freedom made flesh, who destabilizes an entire city-state through an act of incredible selfishness. They all give you different angles on this one conflict and all of them are right and wrong in their own ways.
What are the conflicts in Inquisition? Who are the stakeholders in those conflicts? The devs will draw their characters from those groups, because that's how good character design works, and the romances will capitalize on those conflicts.