Apple (AAPL) has historically relied on one Eastern manufacturing giant to assemble its iPhone lineup, but the next generation of Apple handsets will reportedly see that change. According to well-connected KGI Securities analyst Ming-Chi Kuo, Apple plans to diversify its iPhone manufacturing plans and split orders between Foxconn and Pegatron. While Foxconn has historically assembled all iPhone models, Pegatron will reportedly build 75% of the FDD-LTE version of Apple’s upcoming entry-level iPhone model and 55% of legacy iPhone 4S and iPhone 4 models. In his research note, which was picked up by AppleInsider, Ming-Chi also estimates that Apple will ship 35.8 million iPhone 5S handsets in 2013 and 53.4 million new entry-level iPhones.