As per the rumours, Apple is expected to announced the new iPad Air on October 16, at an event. According to the new report, the specifications of Apple iPad Air 2 leaked from sources & these sources are from within Apple.
According to leaked specifications, it is 0.5mm thinner when compared with existing iPad Air and features same design. Some of the changes made includes removal of mute/vibration button to make the tablet thinner. It comes with built-in Touch ID into the home button. It has 2GB of RAM and feature A8 processor.
It comes in gold variant and comes in 16GB, 32GB, 64GB and 128GB storage variant. Other upgrades will allegedly include a new 8MP rear-camera, HD FaceTime camera, and Apple Pay.[Source] The Michael Report and PocketNow