Can't wait to see Nintendo Q3 result with Smash and Let's P/E on it.
My prediction for Switch software LTD at the end of 2018

Mario Kart 8 Deluxe = 16.2M
Super Mario Odyssey = 15.1M
Zelda Breath of the wild = 14M(NS+WIIU)
Splatoon 2 = 10.61M
Smash Ultimate = 8.8M
Pokemon Let's GO P/E = 7.5M

Mario Kart 8 Deluxe is going to surpass SMO without a doubt.
NPD MK8D>SMO
GFK MK8D>SMO
MC MK8D>SMO