Fuel cell technology is still in its infancy. Japan has made great progress and has a huge vested interest in it. They have little oil/gas of their own and are unwilling to fight wars to obtain it The best estimates are that it will be widely available in 25-40 years.
Some Arab states, well Abu Dhabi at least has taken its oil wealth and created a phenomenal business center. Morocco is also rapidly becoming more of an outpost of the EU than part of Africa. There isn't a lot of business that doesn't center around oil in the mideast.
While we may well use fuel cells to power our homes and our cars and computers, there is yet a substitution for plastic. See, Steve isn't so dumb after all, metal is the future! It's not just plastic but also fertilizer and a few hundred thousand other things that we use in our day to day lives that are made from oil. While we may no longer need to fight wars in order to drive our SUVs from our home in our gated communities to our job in that treacherous concrete jungle along that dangerous strip of asphalt, we will be fighting them so that we can have rubber tires, gore tex jackets, plastic pop bottles, etc, etc.
As far as the rest is concerned, the Muslim world is going to have to figure out things on its own and if they take a potshot at each other with Nukes well who are we to tell them not to. They know full well the consequences.
One of the biggest threats the arab world faces is that of overpopulation. With limited amounts of water and agricultural land its doubtful that they can feed themselves for much longer. Allah will provide, is often given as the reason for such large families. It might well be that the Arab/Muslim world will rule the globe based on that fact alone. Either them or the Mormons
It is an interesting set of questions but I don't know if there is any answer or if we should even propose one. We have done enough damage in the middle east. Maybe we should give someone else the chance to figure it out.
Ne perdez pas votre vie à la gagner.