About edicts, yes, they don't ruin the game balance, because now i have 12 full provinces and can make 12 edicts accordingly. And i hope CAI can do the same thing...
About army caps it is a very controversial..Firstly, now i have 200K treasury and 14 armies and can easily recruit at least 10 elite full stacks turning the game into steamrolling..Secondly, about I "free to put garrison unit to every region". Is CAI really able to do this on his part (sit in the city for turns)? Otherwise it gives a direct benefit to a human, but the purpose of this mod complicate our lives ..
You also say that the CAI can not recruit 40 armies, but it must be tested (with the low prices of upkeep). Well then, can best to reduce this limit to 30 armies at imperium lvl 7, if you are implying that this game will not be the Mongol invasion
By the way, why do not you make your mod through Steam? it will make it much more popular!