This is a community forum supported by other users like yourself and community specialist's so we don't know what plans Google has for the future.
As a general rule Google will usually support a countries language when they start selling the device from their online Google store within that country.
You can submit feedback that goes directly to the Google Nest team and request this.
Since this thread hasn't had any activity in a while, we're going to close it in 24 hours to keep our community tidy.
We hope we that the steps provided on the previous thread worked on your end. However, if you're still experiencing the same issue, please feel free to start a new thread and provide as many details as possible so that others can lend a hand.