As reported:
https://www.autoevolution.com/news/2017-mazda-cx-5-getting-7-seat-version-in-japan-114864.html
Will most likely be in Japan only as they don't get the CX-9.
Possible 7 seat CX-5 spied:
https://www.opptrends.com/2017/03/2018-mazda-cx-5-seven-seater-version/
https://www.autoevolution.com/news/2017-mazda-cx-5-getting-7-seat-version-in-japan-114864.html
Will most likely be in Japan only as they don't get the CX-9.
Possible 7 seat CX-5 spied:
https://www.opptrends.com/2017/03/2018-mazda-cx-5-seven-seater-version/