Before 1 January 2021, will a date be set for a referendum on Scotland's status within the United Kingdom?
A change in Scotland's relationship with the United Kingdom is being discussed as a possible consequence of the Brexit process (BBC, Guardian). The referendum date is immaterial to the question. Whether the UK government sets or agrees to the referendum date or implements the result is immaterial to the question.
The question closed "No" with a closing date of 1 January 2021.