I live in a multi-lingual household. My wife would love to be able to talk to the assistant in her native language (Mandarin) while I use English.
Ideally, we would be able to have two different wake words and using one of them would put assistant into the needed language for responding if a verbal response is needed.
Same situation here. But I think your title is a bit confusing: At least for on device wake words it is already possible to use multiple wake words. It is more about triggering different pipelines/languages via wake words. Maybe you can improve the title?