Apple is likely to launch two variations of its next-gen iPhone, but we might get only one of them this year. According to analyst Ming-Chi Kuo, the 5.5-inch version of Apples purported iPhone 6 could be delayed until 2015 due to production difficulties related to the devices phablet-like size. Kuo, a reputable KGI Securities analyst with a history of predicting Apples future, notes that all of the challenges facing the 4.7-inch iPhone 6s production are even more of a problem for its big brother.