Europe won't rise up because the Roman Empire was their security and protector. The Middle Ages began because there was no one protecting them anymore so everyone scrambled to find ways to defend themselves leading to ethnic diversity as the Castles were built up.
The Turks are a little more difficult though because if we have them pop up it will screw over both AI and Player Byzantine Empire. However if the Parthian Empire remains and is not conquered by the Mongols this leads to no rise of the Seljuk Turks taking Baghdad. The Seljuk were the primary force that eventually caused the Ottoman's to conquer them.
As for the New World it all depends on the Powerhouse nations opinions of exploration and technology. Japan if we keep it's isolation policy will not be discovering America. China on the other hand has the possiblity if Zheng He somehow makes it to the Western Coast of America. As for Rome itself it depends more on whether they want to explore more(If it was true that the Phonecians discovered the New World first then Rome might get the urge to discover the lands the Phonecians found.)
The Turks are a little more difficult though because if we have them pop up it will screw over both AI and Player Byzantine Empire. However if the Parthian Empire remains and is not conquered by the Mongols this leads to no rise of the Seljuk Turks taking Baghdad. The Seljuk were the primary force that eventually caused the Ottoman's to conquer them.
As for the New World it all depends on the Powerhouse nations opinions of exploration and technology. Japan if we keep it's isolation policy will not be discovering America. China on the other hand has the possiblity if Zheng He somehow makes it to the Western Coast of America. As for Rome itself it depends more on whether they want to explore more(If it was true that the Phonecians discovered the New World first then Rome might get the urge to discover the lands the Phonecians found.)