Some of you have maybe noticed the flags on the castles in the screens? We are going to have custom flags, much like the cape system in GuildWars.
Custom unit colors is something we have thought of, but we aren't commited to the idea as of yet. On a side note though, incase of two colours being the same, we could always make it so you have 2 different color variations, much like sports teams have 2 different jerseys. So if the first one blends too much you can go with Colour B.