The latest iPhone 7 leak comes from China (as do most of them really). A picture showing what is purported to be the handset's rear casing has been leaked, and you can see it to the left. This is the shell for the rose gold color version of the upcoming iPhone, which means Apple won't give up on the pinkish hue this year. You can see the revised antenna lines on the leaked case. The position of these lines up with what basically every single leak and rumor about the iPhone 7's design has said so far, so at this point it's hard not to believe that this is what Apple is going for with...
Source: http://www.gsmarena.com/alleged_rose_gold_iphone_7_rear_case_leaks_showing_single_camera_new_antenna_lines_-news-18534.php