ddeevveess

Possible spoilers below:

@gobo I think it's pretty obvious that that is the case.  It is also obvious that the black shirt is Locke atm. 

If you think about it, Locke didn't come back alive until they were on the island.  Then, the new Locke lead Ben to the temple.  Ben fell down to the chamber, where Ben met the smoke monster/his daughter.  The smoke monster then procedes to tell him that he must follow all of Locke's orders or else it will kill him.  The smoke monster then turns back into Locke and helps Ben out of the chamber.  Ben is the loophole black shirt was talking about, probably because he was banished... later, he is talked into killing Jacob.

I think I've got it all worked out, however, I'm not sure where the final season is going to go.  Maybe, the Oceanic/Ajira/Others vs. the Smoke Monster + disillusioned followers.

Sorry for my jumbled thoughts and poor grammar, it's late and bedtime.