On the subject of if there will be a 61 key Genos, the Dutch website that first (correctly) reported the dates of the teaser videos also said that there will be 61 & 76 key versions.
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Komplete Kontrol S61/Korg PA900/JBL 308P/Focusrite Clarett 2Pre/Band in a Box/Reaper/EZdrummer 3