I hope Widmore is the person that Jacob said was coming to the island. He has to be somewhat crucial to the plot and it would be great to see him face off with Ben again. The last we heard of him he was preparing Locke to go back to the island because a "war was coming". It looks like the war has definitely begun now, and considering Locke became inhabited by MIB on his return, do you think Widmore would align with MIB if he comes to the island?
Or do you think it is Desmond who is coming, considering the "island isn't finished with him yet"? What would his possible purpose be?