If Van Baker, an analyst with Gartner, is correct, then Apple will "set the world on file" with its upcoming iPhone, which is expected to be available in two versions and be released shortly - probably in less than two months' time.

A report in Computer World quoted Baker saying that the upcoming smartphone from Apple will be "massive" for the tech giant headquartered in Cupertino, California.

Baker said, "As well as they did with the iPhone this quarter, with all the rumors of a new iPhone (this fall), I was impressed with the results," adding, "That tells me when the next generation comes out, they're going to set the world on fire."

Preliminary reports state that the next-gen phone will come out sometime in mid-September and the company plans to begin production for both models soon.

The purported iPhone 6 will come in two varieties - 4.7-inch and 5.5-inch models, which are being viewed as Apple's response to bigger "phablet" smartphones from the South Korean tech titan Samsung and HTC.

Many other Apple analysts have agreed that the iPhone 6 launch will be a major deal.

Ben Thompson, who is with Stratechery, said, "I am extremely bullish about the iPhone 6," adding, "It's going to be unbelievably massive."

On the other hand, Mashable speculates two release dates for the two different models of the iPhone 6. Citing Digitimes, the website states that while Apple will launch the 4.7-inch iPhone 6 first, the 5.5-inch iPhone will come later. However, the website did not mention any specific release dates.

According to 9to5Mac writer Ben Lovejoy, the two release dates may have been inspired from the iPhone 5S and iPhone 5C. He was of the view that the dual release probably did not hurt Apple financially.

Lovejoy said, "While there is evidence to suggest that the balance of sales between the two handsets differed from Apple's expectations, the reason appears to be that more people than predicted chose to buy the more expensive model. Hardly a mistake."