No rumours of any updates at this stage.
As per your question in the other thread, the microphone/s work very well - I've used them for hours upon hours of calls & the person on the other end always hears me very clearly, even whilst working in semi-noisy environments. Keep in mind, call quality as always, will depend on your mobile carrier & how the reception is at both ends. I'm on Australia's best carrier so my opinion's coming via a good source of cellular coverage.
& because of this, I can only say buy buy buy.