Despite the dubious source of information, DigiTimes and China’s Commercial Times’ reports of 50,000 to 100,000 test units of the “iPhone 5S” to be manufactured next month have gotten a lot of people talking about Apple’s unannounced seventh-generation phone. And that isn’t even two months after the sixth-generation iPhone 5 was first released.

If Apple is planning to start testing iPhone 5S units next month, then that might make a Worldwide Developers Conference (WWDC) 2013 unveiling feasible, according to UK’s Phones Review.

WWDC is Apple’s yearly developers’ expo held every June of each year, and it was initially expected that Apple would unveil the iPhone 5 at that event this year. But then again, Apple separately introduced the iPhone 4S and iPhone 5 in 2011 and 2012, months after each year’s respective WWDC events, so there’s a possibility Apple may do the same for its next iPhone.

But would it be before or after WWDC 2013?

Apple has become less predictable when it comes to announcing and releasing its devices. The fourth-generation iPad, an incremental upgrade over the third-gen “New” iPad, was launched last month, just seven months after the launch of the previous version. Prior to this, Apple usually waited about twelve months, give or take a few, between releasing new devices.

Anyway, WWDC 2013 might be too early for a new iPhone unveiling if Apple would perform more than an incremental update and go with the “iPhone 6” instead. Additionally, if a beta version of iOS 7 still wouldn’t have been released by then, that would significantly decrease the chances of a new iPhone reveal as early as June of next year.