Only if their economies crash or something like that. So far the demographics are in extreme cases something like 10% natives, 20% expats, 70% migrant workers i

Only if their economies crash or something like that. So far the demographics are in extreme cases something like 10% natives, 20% expats, 70% migrant workers in various forms of indentured servitude. External intervention - could work, but the gulf war showed that it won't be tolerated. Internal strife - could be, but so far everyone is living la dolce vita there (at least the ones with the means and capacity to organize this inversion). Saudi Arabia is the only one vulnerable - but if there is something there it won't be islamist because the people seems to not be too fond for both Wahhabism and the royal family.