Firstly, I thought the customisation in this game was rather brilliant, I saw a lot of variety on the battlefield, particularly in duels.
However, I think it would be awesome if the devs supported this game by releasing various skin packs for the game. Perhaps seasonal skins?
A skin set where all your heroes look like mouldering zombies would be awesome, and there's the potential there to tie-in other Ubisoft properties- an Orochi looking like an oriental assassin ( a la Assassin's Creed) could be great.
Just a minor thing to spruce up the game's visual appeal for further down the line when we're all hardened veterans.