How is the plan for grand tactical AI improvements? I think JMM said, that the AI doesn't changet after the first orders have been issued. In waterloo I played the french and the british AI attacked on the east and broke through my line. But when they reached the south-eastern end of the map the seemed to stop.
Perhaps the AI can be improved with not too much programming in the following way:
When they reach the destination of the first order - which is callculated with terain effects as JMM says - they turn and get a deployment order on the next LOP. Perhaps if they see enemy troops they deploy with all units, if the way is free, a cavalary unit or corps is enough.