since you bring up AI ... its actually not too far off in time where it could be pretty commonplace that any average joe could set up image recognition.
writing things down and memorizing the board in fog is one thing. potentially having an AI taking screencaps to collect the data showing up on screen and parsing it to display ... anything really. one person could create this foro themselves and have an insane advantage. or distribute it and cause all kinds of balanceish problems
after that part, its not even really AI. its just data analysis. it could easily track how many troops people are getting each turn, and guess at what bonuses they have and territory count. while marking an overlay with a color to show their relative location and any 'last known locations' you saw before losing vision
it could remember troop counts and keep track of how big territories are since you last saw them, maybe estimate how much bigger with their known reinforcements.
have dice odds come up on the fly every time you go to attack,
watch bot behavior and notify you of their personality and likely places to attack
and this would all be totally legit by the rules o.o