https://techcrunch.com/2017/11/10/nintendo-may-make-as-many-as-30-million-switches-next-year/

Rumors in early October had Nintendo more than doubling production for the highly successful Switch in order to meet what will almost certainly be crushing demand during the holidays. The company may be planning even higher volumes for next year — perhaps as many as 30 million consoles.

Citing sources with direct knowledge of the plans, the Wall Street Journal reports that Nintendo has started sharing the idea of expanded manufacturing with partners. 25 to 30 million is the cited goal volume, but they could aim even higher depending on how the holidays go.