So with the expansions this year instead of a new game adding to its legs, Sword/Shield looks very likely to end up the second highest selling Pokemon game ever. I guess there really were a lot of folks wanting to be able to play a core Pokemon on console.

Also, Astral Chain looks on track to be one of Platinum's most successful games to date, which hopefully will strengthen their relationship with Nintendo going forwards.

Since I'm doubtful Botw2 will come prior to 2021, I doubt it will have the time to sell like the original before the console winds down in popularity in anticipation of next gen. I'd be curious what the drop in % was from OoT to MM.

It is, but never say never. There was a time when nobody thought that Mario Kart 8 Deluxe will go beyond 20m, but now it's on pace to hit 30m by the end of 2020.

RFA had a low start because Nintendo was cautious with production (the box of the game is huge and takes a lot of shelf space, so that's something retailers aren't fans of), but word of mouth for RFA is very good, so it can realistically reach shipments of 1m+ in each quarter this year.

It's understandable that you think that way, because I've strongly disagreed with your posts on this site a lot of times. The tone in my responses to you has been harsh, but that's because I respond in accordance to how other people come across. The tone of your posts is not uncommon to be aggressive, so you'll get responses of the same kind. Basically, if you work on being nicer on this site, people in general will be nicer to you as well.

If you've bookmarked my above post to shove it in my face later, you are in for a disappointment by default because there isn't much of a prediction in there. "Three of the seven games should be made" isn't much of a challenge when one of the games is already released and another one is announced; so there's only 1 out of 5 left to go. "At least one of the seven suggestions will sell 20m+" isn't much of a long shot either.

Switch Sports is a re-interpretation of Wii Sports. Of course not plain tennis, golf, bowling, baseball and boxing, but a continuation of how Wii Sports Resort had already built on the first game. Switch Sports is basically what a properly developed Wii Sports 3 would have been, similar to what Ring Fit Adventure is to Wii Fit. Not the same plain old that people already know, but an evolution of it.

Oot sold 7.6m and MM sold 3.33m

Since I'm doubtful Botw2 will come prior to 2021

They had delays that dealt with brand new game engines, completely fresh starts and new hardware (Wii Motion + for Skyward Sword, Switch for BotW).  None of those are applicable here.