The quote I gave you is about it. I agree that the omens point away from very near term production of this new find.
They can't form alliances to develop oil without changing their constitution, which won't happen. They can contract to drillers, but not many deep rigs available, and anyway pemex is starved of funds, both because the state takes it plus vast internal pemex corruption and/or overmanning. My guess is 2015-2020, if then, and assuming the find is real. Mexico output (and, more importantly, exports) will be down substantially by then - maybe if they become an importer they will have the impetus to change their constitution.