Since Camera Connector is not even compatible with iPod classic, I don't think Apple will introduce or update Camera Connector for new generation iPods and iPhones.
I got the Camera Connector for 5th Generation iPod for computer-free travel. But it is slow with strong appetite for battery. With minor touch up, it could be a great product (faster throughput and pass through Dock Connector to allow simultaneous charging and transferring), but other than minor packaging updates, it remains unchanged and essentially in EOL status.
If you are serious about photography, Epson P-3000 is one of the best alternatives. At $400, is isn't cheap, but it has gorgeous LCD with RAW capability and very fast.