Game freak has said many times now that Pokémon will launch in late 2019
I'm not saying i am not expecting the game this year, in fact i do, i only stated that still needs to be confirmed with a name and a date. It won't be the first game, even from Nintendo, getting delayed in similar fashion.
Here are the sales for the relevant 3DS titles:
Pokemon X/Y - 16.37M
Animal Crossing: New Leaf - 12.10M
Luigi's Mansion: Dark Moon - 5.75M
On Nintendo's previous handheld, Animal Crossing was bigger than Smash and both Luigi's Mansion and Fire Emblem were individually bigger than Mario Party, so it's strange how confident you are that 2018's lineup has more selling potential than 2019's. Unless you think that Pokemon Let's Go will sell more than Pokemon Gen 8, but I don't think even the most desperate detractors would argue something like that.
I'm very curious: How much do you think 2019's games will have shipped by the end of the year? In particular, Animal Crossing, Pokemon Gen 8, Luigi's Mansion 3, and Fire Emblem: Three Houses.
I don't know how much all thsee games will sell combined, but if you ask me those individually ....let me think....
Just in 2019 (shipment numbers):
Animal Crossing, no more than 10M (more difficult to know because it depends on when it launch)
Pokemon Gen 8 around 12-15M (if it launch in November)
Luigi's Mansion less than 5M but getting close
Fire Emblem just around 2M.
But some of these game depends on when they launch, so it's difficult to know exactly. If i knew the dates i would be more specific.