"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Apple and Intel's Collaboration on MacBook Air and Beyond
Up until January, Apple had used off-the-shelf Intel parts generally available to other manufacturers. For the MacBook Air, however, Apple approached Intel in early 2007 asking for a small, thin chip for use in an extremely thin computer. Initially, Intel said they were unable to help, but then realized they had an old project that had not been well received by PC manufactuers:
Years earlier, researchers had dreamed up a similar chip in a tiny package, but the idea had been put on the back burner after PC makers gave it a ho-hum reception. The concept just had to be dusted off. We had that small chip package pretty much sitting on the shelf, Rattner recalls. Within a year, Intel had updated it to meet Apples needs and delivered it in volume.Apple used the chip in the MacBook Air, which was introduced in January of this year. The most interesting comment, however, is that Intel's chief technology officer Justin Rattner says that Intel is working with Apple on more projects that are "equally aggressive".