Bloomberg Technology on AirPod rumours:
The model coming as early as this year will let people summon Apple’s Siri digital assistant without physically tapping the headphones by saying “Hey Siri.” The function will work similarly to how a user activates Siri on an iPhone or a HomePod speaker hands-free.
The new model is also rumoured to include Apple’s new “W2” wireless/Bluetooth connectivity chip. The successor to the AirPods’ secret sauce for stable and high quality audio.
Source: Apple Plans Upgrades to Popular AirPods Headphones – Bloomberg