If as suspected the Saudi's slow oil production to push prices up then the Iranians may just push their production up to compensate for the gap and increase income. Will seriously annoy the Saudi's who need the money. Other benefactor of this will be the US shale producers who start in part to become more profitable to fully re-enter the market.
Either way the Saudi's could be economically screwed into the ground and that gives potential for internal unrest and the House of Saud is destabilised.
Maybe it is fast approaching for the expats to consider their positions and have a holiday in Dubai?