Nintendo said they are keeping the 3DS.  

https://www.vg247.com/2016/10/20/nintendo-says-switch-is-a-home-system-first-which-means-3ds-is-safe-for-now/

"Speaking with Polygon, a Nintendo representative told the site Switch was “a home gaming system first and foremost,” when asked if the portable system would hurt sales of the 3DS family."

http://www.eurogamer.net/articles/2016-10-29-nintendo-isnt-replacing-3ds-with-switch

I do not get this argument. If it does both, why not realize Nintendo had a great idea and that is that. If someone releases a car that drives by the roads and also flies, we will not say "it is the end of the aviation industry as we know it". It is just a cool gadget that does both. I like it.

And this is exactky how misinformation spreads. 

Official Playstation Blog

Interview of Aaron Greenberg/Gamespot

so the platform holders have said there wont be exclusive games for the revised consoles. And that they will all be in rhe same ecosystem. Good enough for you?

Fair enough. I trust this goes for the third parties aswell. However, I really don't see the point in either of the systems, as you really can't take advantage of the increased system power, or if you do, the downscaling isn't going to do justice for the original systems.

The power of the systems are being used exactky as intended. Its why i keep saying the are just souped up versions of the exact same consoles. They are designed to support 4k TVs, give you higher rez, better framerates, all round better IQ assets and that's pretty much it. They are not designed to give you 20 enemies where there user to be 10. Or outright give you games that can't be run on their older siblings. 

Its simple, if you own a 4k TV or plan on getting one within the next year, then the PS4pro and Scorpio won't only make sense to you but are for you. If you are on a 1080p TV and don't plan on upgrading anytime soon, then stick with a PS4/XB1s. 

Fair enough. I trust this goes for the third parties aswell. However, I really don't see the point in either of the systems, as you really can't take advantage of the increased system power, or if you do, the downscaling isn't going to do justice for the original systems.

I can technically understand the 4K, but essentially you're saying the same thing I was meaning. If you're designing your game to "run with better framerate on Pro/Scorpio", instead of optimising the game for the original, or have better AI on them, the original is going to het the watered down version.

This shows a complete lack of understanding of how and why consoles sell what they do.

Sales curves were typically relatively predictable barring unusual circumstances. It is true that systems did typically peak by their third full year, averaging around their second (within a given region, anyway). But this is not the case anymore. Last generation turned those assumptions on their head. The PS3 & 360 did not peak until 2011, fully five and six years after launch, respectively. That quite literally never happened before. The closest example was the Sega Genesis (in the U.S. at least), but that was only because Nintendo had a de facto monopoly on the market when the Genesis debuted, which greatly depressed sales in 1989-90. It wasn't until 1991, at which point Nintendo's monopoly had been broken, that the Genesis finally started selling, and it peaked in 1993.

One of the biggest factors influencing a system's success is pricing, and the biggest stimulator of sales is price cuts. IMO the only plausible explanation for the slow initial sales and extremely delayed peak of the PS3 & 360 was their relatively high inflation-adjusted price points at launch combined with price cuts that were spaced out more over time and were smaller in relative terms than past price cuts. In fact, I made a thread explaining this a few weeks back.

If we look at the actual factors involved in determining the sales curve of any given system, we can reasonably assume that the PS4 (and by extension the XBO) will likely peak a bit earlier than the PS3 & 360, but much later than the PS2 and other older systems did. It's reasonable to assume that the PS4 will peak next year. The PS4 had sold just shy of 36M units lifetime as of the end of 2015, so that means it has sold 14M globally this year as of the end of November and will likely sell another 5-6M in December, putting it at around 19-20M for the year, bringing its lifetime tally to as much as 56M. With the combined effect of the Slim and Pro likely continuing to cause sales growth into 2017, we could see sales upward of 22-23M next year, which would push the PS4 to close to 80M. While 2018 will likely see continued decline, even a rate of decline like the PS3, combined with the launch of the PS5 in 2020 (which will increase the rate of decline), the PS4 should still sell at least another 20M units by time it is discontinued. The PS3 was able to do that and more, with about 25M sold from 2012 through 2015. The PS4 should easily surpass 40M each in North America and Europe, will probably do around 10M in Japan, and should pull at least 15M down in other markets.

I honestly do not forsee any scenario where the PS4 fails to sell 100M units lifetime. The PS3 was able to sell 85M despite coming in a distant second in America and having a much smaller slice of the market in Europe than the PS2 did. With the PS4 far outpacing the PS3 in the West in both raw numbers and market share, 100M is essentially a shoo-in.