Will the iPhone 5's successor have a larger screen?

Apple reportedly working with larger screens for iPhone, iPad

Apple is testing versions of its iPhone and iPad with larger screens.

"Apple and its Asian component makers are testing larger screens for iPhones and tablets, officials at the company's suppliers say," according to the news alert, which did not offer any specifics on what size screens Apple might be interested in for each device.

CNET has contacted Apple for comment and will update this report when we learn more.
The alert appears to buttress reports last month that Apple was exploring iPhones with screens as large as 5.7 inches. Reuters reported in June that the company was considering the introduction of "at least two bigger iPhones next year," one with a 4.7-inch screen and the other a 5.7-incher.
Observers theorize that Apple has been looking to install a larger screen size for on an iPhone to attract consumers smitten with Samsung's 5-inch Galaxy S4 and 5.5-inch Galaxy Note 2.
Some Asia-based reports hold that Apple has decided to delay the iPhone 5S in order to switch to a larger screen size. The 5S was expected to hit the market in September or October but has been pushed back to the end of the year to allow Apple to increase the screen size from 4 inches to 4.3 inches, the Commercial Times reported last week.