With Apple rolling out iOS 8.4 this week, speculations and rumors about when the upcoming Apple phones are coming out, are going into overdrive.

It has already been rumored before that the new iPhones will include ForceTouch, the new feature that has already been included in the latest Macbook and Apple Watch. Aside from that, speculations suggest that the highly-anticipated devices have already started production.

Though many are focused on what features the latest iPhones will have, the number one question on everyone's mind is, what they will be called. Will they be called the iPhone 6s and the iPhone 7? If the trend is to be followed, then one of the upcoming phones will most likely has an "s" attached to it rather than jumping to 7. Apple has done this to all its iPhone upgrades since the iPhone 3G in 2009.

And if Apple does indeed follow its previous habits regarding iPhone launches, Apple users can expect the new phones to drop before the end of September. Its announcement will most likely be at a special San Francisco event on September 8 -- Apple has made its iPhone upgrade announcements every second Tuesday of September in recent years.

Alphr also speculates that there will be a significant increase in the price, as what happened to the iPhone 4 to iPhone 5 upgrade in 2012. They predict that the pricing will fall between $649 to $659 for the iPhone 6s (iPhone 7) and $749 to 759 for iPhone 6s Plus (iPhone 7 Plus).

Because Apple might want to cover more bases in terms of screen size, rumors are out that there will also be a third iPhone to launch as well. This will be a 4-inch phone that will most likely be called iPhone 6C or maybe iPhone 7C. The rest of the iPhone upgrades will have almost the same design and finish as the current models, as was also revealed when rumors about the ForceTouch surfaced.

Sapphire glass is also something that iPhone users have been looking forward to since the iPhone 6 and 6 Plus. Because of supply issues, Apple was unable to materialize it but since those have since been resolved, the new iPhones might get sapphire glass at last.

However, all of these details remain to be rumors without Apple's official announcements.