Crusader Kings II

[Monk]

As for the next big expansion DLC... I am predicting playable Holy Orders. Or perhaps bishops/theocracies in general. But I find it more likely that they'd come up with a mechanic for a player to control a Holy Order as a tool of the crusades, perhaps giving up land to secular rulers of their religion after they have won it from the infidels. It would certainly bring the emphasis of Crusader Kings back onto the Crusades, anyway.

This is one of the biggest pieces missing from the crusades, currently. Right now if you want to give land to holy orders that are above a count tier they will automatically become independent. You have to use console trickery to get them back to being a vassal. If there was a system in place that allowed greater interaction with holy orders (And mercenaries in general!) that would be a worthy addition to the game.