Based on Nintendo's shipment data, Breath of the Wild on Switch is at 1.29 million shipped+digital as of September 30th in Japan. Let's say the Wii U version adds about .25 to this number.
That would put Breath of the Wild at around 1.54 million total. From there, it would just need to ship another 160k to top the original & become the best selling Zelda game of all time in Japan, which may happen as early December 31st.
When it does, ONWARD TO 2 MILLION!
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