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We're also hearing rumors that Apple might be changing up the docking port, to something smaller and less compatible. The premise is that this would clear up some internal space, but it also means customers would have to buy all new accessories. Many of us have been handing down chargers, power dongles, and the like for four years now, and we should definitely be punished for our loyalty.
The Magic 8 Ball: The Magic 8 Ball reads, "Concentrate and ask again". This one's tough to predict. If Apple were a normal company, we'd expect them to reduce the port size to make room for more connections. But Apple isn't normal by any stretch of the imagination. So, they might shrink the port to make more internal room (even that tiny bit of extra space for battery could give you another few minutes of run time), or because, well, being the world's largest company isn't good enough.
Image: This shows Apple's patent drawing of a docking station for an iPad. It was granted in May 2011.