I believe the most number of jobs to be created by it would be the blue collar ones. A lot of construction workers, truck drivers, crane operators, riggers, masons, plumbers, surveyors, electricians etc etc will be needed and they are the real strength of a country when it comes to man power. They send their earned money back home (image 20,000 more pakistanis sending 2k AED home per month), not invest in europe or put in swiss accounts.
then comes the lower to mid managerial level, these jobs will mostly be taken by asians and thats a good thing too because these will be in 1000s too. accountants, engineers, doctors, bankers etc etc.
only the top 20% or so jobs would be taken by arabs and westerners because thats where the big money lies. so i think it will bring a lot of cash inflow into the asian countries too, in form of over seas workers remitting earnings. infact pakistan largely depends on this source of income!
In short, more opportunities will definitely arise for all classes and nationalities of people, however, at a cost. The best decision one can take at this time is to buy some property in uae after 6 months or a year and hold it for atleast a few years. It will certainly give good returns. thats what i wud ve done if i had a few 100k aed spare.