According to the article below this capability is rolling out next month. If a skill has been published in both languages, will it be available to users and get launched in the respective language spoken by the user in the invocation phrase?
There’s also a new multilingual mode, designed for bilingual households to allow customers to talk to Alexa in either language they use. It’ll start rolling out in the US with Spanish and English, in Canada with French and English, and India with Hindi and English next month.
