Switch sold 2.74m at launch in March, now we have official Nintendo numbers for first quarter (April-June) that saying that Switch sold 2m in 3 months and that puts Switch on 4.7m at end of June with huge supply problems. Nintendo said they will increase shipments from July and August, and further increase from fall. So in next quarter (July-September) Nintendo will ship at least around 2m consoles again, so that would put Switch around 7m right before holiday season, and in holiday season Switch will easily pass 3m consoles.

At end, all that points that Switch will easily hit 10m at end of this year.

it will depend of Nintendo's ability to manufacture enough consoles from october to december. Mario Odyssey and Christmas's holydays will push the already strained demand ffor the Switch.

2m in three months (April, May, June).

The Switch will sell out of any stock it gets this year, no matter fast they manufacture it.

Yes, period from April to June.

Of Course, but I expecting they will be able to ship at least 3m for holiday season and 2m for previous quarter.

You had said two months in OP, probably a typo.

My bad, typo, I corrected.

Probably.

I'm not sure, I feel like when the presentation finished we all thought 8 was the max for the Switch first year and that didn't even seem likely, but now looking at it I feel like 10 isn't that unlikely and i've felt this way for a few months. If Switch is selling this well on Zelda and an overpriced mario kart remaster, Splatoon and Mario are enough to theoretically carry it to 10m. I think it will depend though on two things : How well will Splatoon 2 sell consoles outside Japan(I don't think it will sell many consoles in Europe, but it might happen in America) for july and august, and how many units will Nintendo have for Mario's release? Honestly, I think Splatoon 2 is more important than people think, in part because people keep focusing on Japan, when the more important part is how well Splatoon 2 will sell consoles in america. It could close the gap, or not.

Kind of off topic but, even with limited games, I'm really glad I got my Switch. Honestly I think it's build up of software is pretty impressive exclusive wise, Breath of the Wild is still keeping me interested and i've had it since I got my Switch on the 10th, and Splatoon 2 is pretty fun too. Unpopular opinion, but as a 3ds owner with a pretty big library, i have like 20 3ds games, i've spent probably a thousand hours on the console, and yet there are so many games that i just can't get into. 3DS for me was the 3D Land/Monster Hunter 4U/Zelda Remasters/Fire Emblem machine, and not much else. I think the 3ds library was bloated with remasters, half-remakes(weird games that are part sequel part remake), and niche games that while occasionally cool could also be quite boring(Xenoblade and Dragon Quest 7 ... I've heard 8 is significantly better and I almost feel ripped off). To be fair my opinion might change once i finish these games, some day i'd like to finish every game in my 3ds collection, but the library is considered so great but I think there's a few too many unoriginal retreads and uninteresting games for my liking.

If two of these three games Nintendo says are supposedly coming out in 2018 for Switch come out(Metroid Prime 4, Pokemon Switch, Fire Emblem Switch), which feels pretty unlikely I could see all of them getting delayed, but if even two of those games come out, I think it will already have a better library than the 3ds.