Alexa Follow Up mode coming?

Hope Sonos doesn’t remove the ‘wake up sound ’ to me it lets me know Alexa is active, I say that because when I am sitting down I cannot see the lights on the speakers and I hate spending time talking to nothingness.

It is highly unlikely they would disable it completely. Many people seem to be unaware that Amazon's own Echo devices use the same exact wake sound, but that the sound is disabled by default and only enabled if the user chooses to change the setting in the app. Since Amazon requires some form of notification as to whether Alexa is listening or not—and (as some have speculated) may not consider the Sonos' One light adequate in all circumstances—it remains to be see if Sonos will ever give us this option to disable the wake sound. But I don't see them ever removing it completely.