Used up or not, refillable or not, the emergence of the wells in recent books and RJ's quotes on a shielded person still able to channel that as long as they possessed or were wearing a well might hold some significance, especially in the next two books.  For example, Moiraine might possess one and use it to get out of Finnland.  It will be neat to see more T'a and such used.

Frankly, I don't think it matters anymore. The Eye has been used completely. For its intended purpose or not, it makes no difference. It's not coming back.

 

The Blight isn't in TAR, but The Eye of the World was restored by the Green Man in the middle of it, wasn't it?  Would that make the Eye of the World a pretty strategic area for the Light in TAR, or in the real world?  I'm only assuming this with TAR since I feel it's part of the key of sealing off the DO again.

 

It would also make sense with the whole, "Using Clean Pool of Saidin wasn't the real use of the Eye." thing people have always said, because it was actually made for the Green Man to sacrifice himself in the middle of Hell itself, creating The Eye of the World (an actual area of the Pattern in the middle of Nothingness.)  *tear*