Here's a completely fluffy suggestion: I would love to see moddable "skins" for the UI...perhaps one for each nation. For instance, Man's default UI skin might be a stony grey, outlined by Celtic knotwork...Arcosephale's might be a white/grey marble. And so on.
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I agree with the realistic Irishman who said he preferred to prophesy *after* the event.
-- G.K. Chesterton