The current channel is 5 kHz wide, but we need to reduce the bandwidth. The new channel will be smaller, but we are still working on the details with Inmarsat. If the channel gets too small, yes, the waveform will be different. When that changes, we'll definitely be releasing a new decoder. No release date yet, but the change will definitely be this month--or at the very latest next month.
The reason we no longer mention anything related to our channel on the website is because it is in a state of flux. As soon as it all finalizes, then we'll be back to normal.