Is There a Chance of Pokemon Sun/Moon Selling 20mil lifetime? (Or close to it)

[PAOerfulone]

Personally, I don't think so.
If Diamond/Pearl and Black/White couldn't do it on the DS, the greatest selling handheld in history and 2nd greatest selling system of all-time behind the PS2, I have seriously strong doubts Sun/Moon can do it on the 3DS, especially considering X/Y won't do it either.
GO will give it a considerable boost, though because of how massively popular that game is, I'll even predict that because of GO, Sun/Moon sales will surpass both Black/White and X/Y, maaaaaaybe, just maybe it'll get close to or reach Diamond/Pearl, but by that point the 3DS will be long since dead, the insane hype and popularity of GO will have died down and Generation 8 will be on the way for NX (assuming Nintendo doesn't make another handheld.)