While a lot of work remains to be done, being alpha and all, I really do like this game. But I was thinking, wouldn't it be cool to have other variations in regards to theme in the future? By this I mean, kind of like spin-off's that make use of a lot of the art-work and code of the original, but differ in regards to setting/lore. This is more of a musing than a serious suggestion.
Personally, I would give my right arm for a sengokujidai H&H (warring states period Japan). Rather than an infinitely expandable map, I would say make a very large map of the archipelago. Making that perfect samurai sword would be the dream of a lot of players I'm sure.