A success, honestly it has the potential to be a PS2 for Nintendo (with NS1 being a PS1)

My money is in-between. Only once have two home consoles gone back-to-back like that (PS1/PS2), so the odds are heavily against it. It will still be successful, but it's not going to be the generational thing that Switch was. You get one crack at something like that, then people tire of it. That will be the Switch 2.

It'll be a huge success.

My ball-park guess is somewhere in between Wii and Switch 1 in terms of sales. Closer to Switch 1 if Switch 2 has its longevity. So yeah, a success. 

A modest success. Not at Switch (one) level success. But, it'll do well enough that nobody, even the most hardcore naysayers in this forum, will call it a disaster.

And we have world champion naysayers here.

I think it'll break 100m.... however it'll fall well short of the first Switch (imo).
There is just too much negativity around all the anti consumer moves, and prices of the games/console online.

Online negativity really doesn't mean shit if it's going to break 100m huh

Anyway... I think it's going to be a success. Compared to the first switch, a smaller success. but still a success nonetheless. 3DS sales (75m) is the floor, and I think it'll end up at 120m or so.

I'm thinking 90-110 millions - there are lot of SW1 sold, but not as nearly SW1 households, and with SW2 being more expensive, my gut feel is that lot of these households will skip on buying additional units. Oh, and competition in portable market will increase.

The launch of consoles is typically the huge fans of gaming or that particular brand of consoles. Casual gamers come later typically. I feel the main problem with sales will be the pricing of the hardware and software for casual gamers. It really doesn't matter about the spec so much its about delivering affordable gaming. I think there is the possibility that Switch 2 won't sell well until perhaps prices outside Japan match Japan prices. I suspect Switch 1 will outsell Switch 2 this Christmas. I think I've seen Switch Lites go for as low as £140 retail but normally £180 I think not sure. That is a casual price point in the UK I would say. I feel there will be some resistance to game pricing from the more casual crowd. 

The next two years will look amazing. Especially with a huge range of ports of current-gen titles. That being said, I expect a lot more competition and alternative handhelds with much better hardware later on in the Switch 2 life cycle. I think they really made a mistake not building a brand-new Tegra ARM chip based on the Nvidia 4000 or 5000 series with frame generation and more, than just customizing the Tegra chip for cars from 2021. Sure, it's at least 6 years newer than the Tegra X1 (Switch chip), but assuming much more competition in handheld gaming, I guess a few years from now many might upgrade to much more current hardware instead.