No and no to both of your LTD predictions. The switch will blow past 65 million and the PS4 will most likely end up at 125 million imo. By the end of 2019, the switch will already pretty close to 65 million and will surpass it by the end of 2020 

Lol, so Switch will sell less than the 3DS even though it's been outpacing it since the beginning? This is also factoring in 3DS had a hard drop in year 3-4. What's going to make Switch have such an emphatic drop where its going to hault enough to sell less than the 3DS?? 

To give you an idea of what I did, I basically took the 3DS and compensated for price difference.  I know that it is shocking for it to be near 50% of sales, but in all reality, I do expect a portable PS5 and more realistically, I don't see how a hybrid console of the Switch's stature can compete with a PS5.  I think that Nintendo will want to recapture 3rd parties and I think that they are going to need something more powerful. I expect Nintendo to release a new console cabable of playing switch games but much more powerful.  Like Wii to Wii U or DS to 3DS. 

I am willing to say a possible 70 million for Switch.  For PS4 yes 125 million (or more) is possible, but the time it takes to get there is going to be some major time into the PS5 life cycle. Again, I think Nintendo will cut the Switch short for a part two.  The reason why we can't count sales is because I expect that the new version will be able to play games that the original can't. 

If we are talking about calendar year I say no less than 43 million.  And 45 million is possible easily.  Next year will NOT sell like this year.  PS5 and Xbox Next will be competing for the huge chunks of the market.  So this year is their Greatest year. Demand for the Switch will fall sharply next year and will settle around 65 to 70 million. 

What new version? One this year? Or something along the lines in 2021? Either way, both are unlikely and makes no sense to happen. For the switch to being outpacing/ trading spots with ps4 at the moment to go to onlying selling half of its LTD is such a bold call. If it does somehow happen, major props to you

43-45 million would mean it sells less than 2018, if you think 2019 will be its greatest year than 46 million would be the minimum.

PS5/XB4 will not have any notable affect on Switch sales, there is literally no data that supports something like that happening. I would like you to show me one example of a consoles sales plummeting due to a different company releasing a new console 3-4 years later.

Switch selling only 65 million would give it by far the worst legs of any successful console of all time, significantly worse than Wii. It just doesnt make any sense to think that.

Just what I thought, you're not basing your prediction on anything tangible, just pipe dreams and wishful thinking. PS5 portable? Nothing points to that being the case. And even if it were, when has a Sony portable ever had a negative effect on a Nintendo portable?

more unrealistically you mean. A portable Playstation would still not come close to PS4 power without sucking the battery dry in a millisecond or being heavy as a brick.

But also remember that the year Switch came on the market was also the best year of the PS4, simply because they barely compete. The release of a PS5 thus has close to 0 effect on Switch sales.

While I do think this year will be the peak of the Switch (due to most heavy hitters having been released by end of the year), I don't expect the sales come crashing down anytime soon. Rather, I expect them to be plateauing for a year and then come down slowly.

In fact, unless the PS5 would be released this year or next spring, it's quite possible that the Switch will be very close to those 65M already by the time of the PS5 release

Yep it will be quite close. Sales should be close to 60 million by the end of 2020.

2017, ~13 million

2018, ~16 million

2019, ~18 million

2020, ~13 million

2017-2020, ~60 million

It could be a few million over/under that but it's almost impossible for Switch to top out at 65-70 million.