Apple will release two new iPhone models this fall, the “iPhone 4 Plus” and the iPhone 5, according to a note to investors issued by JP Morgan on Monday. JP Morgan analyst Mark Moskowitz reiterated reports that the iPhone 5 will feature global roaming with support for both CDMA and GSM networks. As various other rumors have also suggested, Moskowitz believes the iPhone 4 successor will be thinner and lighter than the current model. In addition, Moskowitz said Apple will release another model with “some improvements” over the current iPhone 4. He has dubbed that model the “iPhone 4 Plus” instead of the “iPhone 4S,” a commonly used moniker for the potential entry-level device. “We believe that investors should start to prepare for more positive surprises related to the quarterly run rate of the iPhones in the near- to mid-term,” Moskowitz said, noting the addition of the iPhone 5 to Sprint’s portfolio and the introduction of the iPhone 4 Plus on China Mobile and China Telecom could create a large boost in iPhone sales.