It's possible we'll see a larger batch of countries for the first round.
Maybe, if they can solve that reported fingerprint-sensor production bottleneck.....
"Apple would be sending engineers to Taiwanese packaging firm Xintec to help increase the yield rate for fingerprint sensors to be used in the iPhone 5S, which is reported to be limited to 3-4 million units in Q3 2013 because of a shortage."
Source: https://www.macrumors.com/2013/08/1...ng-engineers-in-taiwan-for-various-positions/