iLounge have been pretty good with the rumours as of late and it seems that they have hit another one on the head. Their recent article on the new features in the iPhone 5 which is reported out around September time has been backed up by another source. According to the site iMore there will be no significant change in screen size and there will be no change in aspect ratio. However the change to the dock connector according to their sources has been finalised and it is in the current design prototypes. The smaller connector with fewer pins will more than likely be spread across all the Apple devices once they bring out newer model.
The article also reported that iMore had been told that Apple is playing to release a 7 inch iPad at the same time as the next iPhone which presumably will also have this new dock connector.