Maybe they are making a stealth release on holidays with only 2-3 months of previous marketing ?_?
Also, are you counting MH Stories (EU & US) and Dead Rising 4 PS4 version on your sales estimates?
A 2-3 months stealth campaign doesn't fit Capcom's usual modus operandi for major titles. Now, thinking more about it, if it's announced at Gamescom for an early 2018 release, that would mean more months to promote it, then increasing the chances of an actual announcement. I'll put it among other potential candidates though, even if (IMHO) the chances aren't still high enough.
MH Stories? The Western version is published by Nintendo, so I don't think they're considering it as their own SKU.
I surely forgot about DR4 for PS4 and the rumoured Street Fighter Collection. Revising my analysis
Ultra Street Fighter II - < 450,000*
The Great Ace Attorney 2 - 200,000
Monster Hunter XX Switch Ver - 400,000
Dragon's Dogma: Dark Arisen - 700,000
Resident Evil: Revelations - 600,000
Monster Hunter Stories Ver 1.2 - 60,000
Megaman Collection 2 - 400,000
Monster Hunter Frontier 10th Anniversary - 30,000
Street Fighter Collection - 300,000
Dead Rising 4 PS4 - 300,000
*I've revised the USFII estimate since Capcom stated it ALREADY surpassed their expectations, plus Capcom didn't alter their full FY18 forecasts
Total - < 3,440,000
Sales not covered by the mentioned titles - > 860,000
Considering how several of the included estimates are potentially quite higher than whatever even Capcom may have forecasted, we're looking at more than 1 million copies not covered by the already announced games.
Moreover, I'm now doubtful about the potential of a REVII updated release / Switch release at all. You see, Capcom considers "new titles" games released in the current FY, while the ones considered "Catalog" as released before the current FY. Now, Resident Evil VII's expectations (you know, the 2 millions one) is in the "Catalog" cathegory. This means that, somehow, the original Resident Evil VII, not even potential re-releases (again, those would fall under the new games cathegory) has yet 1,800,000 units to sell-in before reaching the FY18 forecast. Is Capcom planning major discount periods, especially on Steam, somehow? Otherwise, I just don't get it. And we're still left without knowing what other title(s) could help Capcom reaching the New Games' expectations.
I'll see if I can make a SKU analysis as well, in order to see if there are unknown SKUs left, and how many in the case.