Was just posted on their Japanese Website which you can google translate, but the official statement is here. The deal should close by March 1st should everything go correctly.
https://www.nintendo.co.jp/corporate/release/index.html
https://www.nintendo.co.jp/ir/pdf/2021/210105.pdf
English Version:
https://www.nintendo.co.jp/ir/pdf/2021/210105e.pdf
[任天堂HP]ニュースリリース「カナダのソフトウェア開発会社 Next Level Games Inc.の子会社化に関するお知らせ」を掲載しました。https://t.co/fZPxSIJ1K2
— 任天堂株式会社 (@nintendo) January 5, 2021
Nintendo acquires Next Level Games https://t.co/ErA5Mga9OY pic.twitter.com/Rufsm4mHWK
— Gematsu (@gematsucom) January 5, 2021