Gondolin has been made larger and more powerful. This was done after further research demonstrated that I had misjudged the size and military power of Gondolin. Girdle of Melian implemented differently. It is no longer a Wonder and is now much more powerful. Nan Dungortheb, the area between the Ered Gorgoroth and the North of Doriath, is now represented and is truly dangerous.
Icons are now consistent with the Middle-earth theme.
Morgoth can no longer be destroyed by starvation. Morgoth can no longer create legions. This is consistent with the book. The followers of Ulfang did not betray the Sons of Feanor and Edain until the Nirnaeth Arnoediad. The Swarthy Easterlings now appear.