Dubai will exist as long as its oil reserves exist. As a touriTst trap, though, this country is destinated to fail. Everything that is fun is a crime there. Naked women, alcohol, homosexuality (the demography with the most disposable income in the world, the perfect people to spend money on your country), and so on.
What's the point in a place like that?
It reminds me of Qatar, the host of the last World Cup. A gay journalist "died" there in mysterious circumstances. All the edgelords on 4chan loved the news, but what kind of sane people will decide to go on a muslin hellhole like that after this event? Those billionaires sheiks are delusional, their project to be the next hot shit will fail miserably once the oil dries out.