The invitations for Apple's Sept. 9 event are out, so the rumor mill is kicking into overdrive.

Ahead of the big reveal in San Francisco next month, reports about a new color, the future of existing products, and iPhone specs are making the rounds.

According to 9to5Mac, for example, the next-gen iPhone, which will likely be named the iPhone 6s, will come in a rose gold color. Earlier this year, The Wall Street Journal suggested the device might come in a pink color, but 9to5Mac says it's closer to rose gold, like the Apple Watch.

Those of you hoping to avoid the big smartphone craze, meanwhile, will be out of luck, as 9to5Mac also said Apple will discontinue its 4-inch iPhone 5c. The colorful, relatively affordable smartphones were introduced in 2013, but will now be replaced by the iPhone 5s, which will get a price drop. 9to5Mac said Apple has been tinkering with an upgraded 4-inch iPhone, but it won't make an appearance on Sept. 9.

As for what the iPhone 6s and 6s Plus will include, the blog suggests that the camera will be a major focus. Watch out for a 12-megapixel camera, 4K video recording, and better photos thanks to an A9 chip.

Other recent iPhone rumors, meanwhile, include the Force Touch capabilities found on the new MacBook and Apple Watch.

For those who are not quite ready to upgrade their iPhone hardware, iOS 9 will arrive in the fall for most recent Apple smartphones. To see what's on tap, check out 11 Intriguing Features in Apple's iOS 9.