The Emperor's Soul

Sanderson's grasp of magic is mind boggling. The man has done it again... gone and created yet another complex and realistic magic system. Picture this, on the planet Sel, the same planet as Elantris their exists another empire on the other side of the world, far from the city of Elantris. There are people in this land called forgers... not just forgers of money, documents, or artwork. They use magic to forge... well, if I told you I would spoil the story.
Suffice it to say, this was a compelling story. It's not my favorite one of Sanderson's, but it is certainly interesting and well worth reading just to learn about the magic system featured on the other side of the Sel.
One question remains for me? How is/was/does the magic system featured in The Emperor's Soul affected by the ten years Elantris was in ruin?