Hello,
I just dropped a funding update on kickstarter because I had seen something last week about this and also that you were looking at doing the 'old school' type combat where you pause, make decisions, and continue.
I know you have some hardcore PnP RPG freaks on your staff and so I was hoping maybe one of them has heard of 'Blood and Steel' which was a 'card game' addition to AD&D combat.
Quick Summary:
Game had a number of attack/defense cards so you could attack high, Parry Low, etc. Depending on what you chose and your opponent chose there would be bonuses or penalties to the die rolls. Made combat a litte more than just rolling dice but also having some thought placed into it.
In the ruleset, as I recall... its has been years, players had access to everything but for my own world/campaign I broke things up so that each region had a specific fighting style and moves that were available. You would have to spend proficiencies to learn another combat style and have their attacks and defenses available to you.
In this way I was able to do world building and give combatants from say my 'Corsair Kingdoms' a whole different attitude and style to their fighting than the Knights of the Empire of the Moon. The Plains Nomads, for example, fought primarily from horseback, and so their attack styles were limited in that they did few 'high line' attacks as generally they were fighting from a height already. So they focused on the mid and low line attacks and defenses. If you met one unhorsed, a cunning combatant would use most of their high line attacks while using their mid and low line defenses.
Something like this might be an interesting addition to your combat system. Since we'll be pausing and making decisions about our attacks, having some thought into an attack rather than just selecting a generic melee attack' may add depth and richness and reward players who are thinking. This would be a welcome change 'back' to the old style Western RPG instead of the shift to consolize like what happened in Dragon Age: 2 and many others.