Cowboys theory
ok i have posted this theory on a few boards so here it goes again
SMITH will be the end of the matrix
as discussed on this forum I believe there is a master Smith, the original. The first hint of this will be when they kill bane in the Real World and 30 smiths drop dead in the matrix and become the original person, dead.
By this point Smith has taken over everyone in the Matrix.
Neo and smith will battle at the same time Zion is under attack, Neo will then relize the way to kill the smith, he lets smith take him over like in reloaded only this time he doesnt fight it, The Original Smith (smith 01) will want to enter Neo to gain the powers of the "ONE" for himself, And at the last moment Trinity will pull the plug on Neo killing Neo and all the Smith. Thus all the Smith will die killing everyone plugged into the matrix. Thus shutting down all the machines an a close call sequence in Zion.