The Qataris will surrender quickly this time. They can't survive isolation in the region. Not from UAE, Egypt, and Saudi. But this may be a precursor for some serious instability in the region. Tribes there don't get along that easily. (Or most other places to be fair).Watch this space.
Instability will ultimately lead to a lot of expat job losses in the big airlines. No sympathy there. Hired hands is all the foreigners ever were.
As for the World Cup, well it never belonged there. And the bribes have already been paid, so it could end up where it rightfully belongs. (South America or Europe)