Yes, but Dubai is basically a city. There is a lot of territory in North Korea. Pyongyang will be modernized quite quickly, but outside the capital, there are a lot of smaller cities that will take time to upgrade.
How many contracts will US companies get? That is the question. Will it all be Chinese, Russian and South Korean? There could be some good long-term contracts for US ex-pats.
The Filipinos, Indians and Bangladeshi did much of Dubai.