Apple is most likely ditching the 3.5mm audio jack in favour of their own lightning port and the launch of several audio products with lightning ports at CES 2016 was just a confirmation of that. While that maybe disappointing to many, there is another rumour that will probably excite you. Apple is apparently planning to improve the quality of the speakers in the future iPhone lineup.
According to a patent filed by Apple, they are planning at changing the internal circuitry and design in order to improve the audio quality from the speakers. They will maximize efforts to increase the space available internally so that the space can act as an audio chamber.
Converting parts of the circuit board etc into a part of the speaker, they would be able to allow more air to be pushed through. This would effectively increase the volume as well as improve the sound quality. Apple would also use a similar technique to increase the quality of the microphone.