Tober on 24 December 2023
When Nintendo publishes it's Fiscal Year 2024 financial results they will need to give a forecast on how many units they will sell next Fiscal Year (2025). Usually their fiscal update will be 2nd week of May. I fully expect the announcement before that date, so that their forecast will make sense.
If no announcement happens before that date, there will be no new console in the next fiscal year.
