I know RPGs and traditional wargames are very different animals, with different audiences.
But I for one would love to have a full-blown tactical-level set of rules for large-unit combat that integrates with Pathfinder.
The current Kingmaker adventure path hints at just how fun a game could be where players can enjoy a really wide ranging game.
To meet my needs, a game would have to contain most of the following:
-A streamlined way that PCs can affect large-scale tactical combat.
-A political component, so that Leadership, Diplomacy and other non-combat elements of Pathfinder can affect outcomes.
-Full integration with the Pathfinder game system, so that races and monsters in the RPG translate smoothly to the WG.
-Clear rules for how monsters and magic-wielders can function as artillery, air support, etc.
-A coherent vision for how war would function in a setting with magic and monsters.
To be clear, I'm not interested in skirmish rules.
I would argue that the standard unit size for the game would be 20 medium-sized creatures per counter or miniature.
Hex scale would be approximately 50'.
That strikes me as an approach that would allow for a wide range of scenarios -- from small border skirmishes (3-4 counters on each side) to fairly epic LOTR-scale battles (20-30 counters on each side).
This could be really cool.
I primarily played RuneQuest between around 1982 and the time 3E D&D came out. I ran Glorantha and we played on the 'Dragon Pass' wargame map. It was beautiful and evocative and really, really added a lot to the game.
It would be great if something similar existed for Golarion.