Pokemon will have a problem in this regard. Previous mainline Pokemon titles have retailed at regular handheld price (around 39.99$), but this will almost certainly be priced at full price, 59.99$. That is a pretty distinctive gap there. And the fact that the first installment sold more than 30m copies. There's nothing short of another pokemania around the world (or a reeeeeally big hit in Chine) that can pull off this numbers. Other than that, it will depend on how good the 8th gen is.
Animal Crossing is a 50/50. I don't really see it doing that much, but I don't know or care that much about the series anyway.
Metroid Prime will beat Prime by very little, but that's it. 2.8m copies is not that big of a landmark for 1st party Nintendo titles.