+1 DanielNishiwaki:
#1 - alliance wars - This would definitely be fun and add a new "point" to having an Alliance
#2 - friends of facebook wars - Fun idea and the game's advertising/marketing would skyrocket
#3 - trade between allies - A MUST have. Sometimes you are simply shy 5,000-10,000 gold and you don't want to raid someone to get it, so asking a friend to donate would help a ton.
#4 - diplomacy (chat with trading before attack, or pay or die) - Hilarious. It's kind of a random idea. Love it! "Pay me this much or I will Dominate you!"
#5 - battles with betting (my friend and I bet gold before attacking the winner gets) - Very interested on your thoughts of how they should implement this.
#6 - prisioners of war (when Someone wins a battle gets temporarily slaves to build) - Yet another hilarious suggestion, but one not far off from the truth. Ever watch the movie 300? Xerxes definitely put people to slave for him everywhere he conquered. (Terrible reference, but really fun idea. Especially since villagers are so important in this game.)
#7 - to build boats (fishing, trade, war, battles) - My suggestion on this is to have a "fishing dock", much like we have fruit trees and gold mines, where villagers can get more food.
#8 - leave message at the end of the battles- THE BEST idea in your list and probably the most feasible one with the way the game is currently coded. It wouldn't take long to implement this at all! If people were to leave a nasty message to ya, then the Revengebutton would be that much sweeter.
The last two were silly. Loved the samurai humor though.