Schematics featuring the dual-camera 5.5-inch iPhone 7 Plus or "Pro" that's set to launch in the fall of 2016 have been published in the June issue of Japanese magazine MacFan, reiterating many of the design details that have been previously rumored for the device.
Japanese site Mac Otakara has shared images taken from MacFan, which seemingly confirm rumors that the iPhone 7 and iPhone 7 Plus will use largely the same design as the iPhone 6s and 6s Plus.
The schematic focuses solely on the 5.5-inch model, which MacFan says will measure in at 158.22mm x 77.94mm x 7.3mm, identical to the dimensions of the iPhone 6s Plus.
Also depicted in the schematic is the dual camera setup that's rumored for the 5.5-inch iPhone 7 Plus and the absence of a headphone jack. Apple is planning to remove the headphone jack in its 2016 devices, with headphones instead connecting via Lightning or Bluetooth.
http://forums.macrumors.com/threads/iphone-7-plus-design-drawings-depict-dimensions-identical-to-iphone-6s-plus.1969906/
I've been on the 4, 5, 6 Plus bandwagon and literally see no reason to upgrade; and if I do, it'll be to the 6S Plus so I can keep my headphone jack.
Also - lets say it MIGHT be waterproof [no headphone jack]. You can have a headphone jack and waterproof aka Galaxy S7.