EFC, You sound like a scared little boy who is about to loose his lunch money. I know about National and I can tell you that you know nothing about them, although you may think you do.
Now back to the topic of the 748. I think if EK operates the aircraft, they will soon realize that adding more airframes will be a great advantage to their freight ambitions. Also, it can be a great airplane to fill the capacity gap between the triple and the 380. So, who knows, maybe there will be some I's in the future.
Only time will tell..........but isn't it nice that we can speculate the way we do.