I realise that this has probably been mentioned beofre but I don't have the time to sift through your preview for the second time (amazing as it is!). So, how many tpy are you guys gonna have? Please, please, please refrain from making it 4tpy! While it is more realistic it would take 50 turns to make it into the 12th century which is crazy. I could cope with 2tpy, although it would still be a really long campaign.
Cheers