Nah. I think around 500k is probably the max it'll do in week one, even with bundles and whatnot. Digital availability changes things too. But the first week with Mario Kart really doesn't matter a whole lot, as it'll be a game that will sell steadily week after week and have major boosts during the holidays each year. The only thing that REALLY matters the first week is how many Wii U's get sold.
Upcoming Games To Get
Definite: Kirby Star Allies (Switch), Mario Tennis Aces (Switch), Fire Emblem (Switch), Yoshi (Switch), Pokemon (Switch), Kingdom Hearts 3 (PS4), Monster Hunter World (PS4)
Considering: Fe (Switch), Donkey Kong Country Tropical Freeze (Switch), The World Ends With You (Switch), Ys VIII (Switch), Street Fighter V: Arcade Edition (PS4), Kingdom Hearts 2.8 Remix (PS4), The Last Guardian (PS4), Shadow of the Colossus HD (PS4), Anthem (PS4), Shenmue 3 (PS4), WiLD (PS4)