Oh Dear God...*loses consciousness* this looks so awesome, SOO much more excited for this than I was for Revelations.
And on the subject of movement, if they evenly space it out between the Frontier climbing (rocks, mountains, trees, ect.) and the major colonial cities, it wouldn't have to change all that much. Boston, New York, Philadelphia, all of them had large expanses of several-story buildings. There wouldn't be anything all that HIGH to climb, except mountains and trees, but it would still work.