Developer Nick Frey has discovered a hidden file in the iOS 7 SDK which lists all the iOS devices that will support Apple's new firmware. His discovery has revealed that Apple is testing a new iPad mini without Retina display. This supports an earlier report by Taiwan's Economic Daily News which claimed the iPad mini's display would not be receiving a bump in resolution in 2013.
Frey told 9to5Mac that the file references three new iPad mini models code named J75, J76, and J77. This means Apple is currently looking at launching another WiFi-only model and two cellular models, which would fall in line with the current iPad mini lineup. The references also suggest that the new alleged iPads will feature the “s5l8950x” processor, or the same A6 chip as the iPhone 5.
Previous rumors have also suggested that Apple will release a slightly upgraded, more affordable iPad mini in 2013, followed by a new iPad mini with Retina display in 2014. However, these are still just rumors, and Frey's discovery does not confirm that they are true.