Do really people say yada yada yada ?

Bla bla bla

 Rabble Rabble

Weebit weebit weebit

Yada yada is a term that was popularized by Seinfeld. It is a generic term to denote details being omitted from a story.

If you look back through the ages. Nintendo typically announces their new system at least a year before releasing it.

If Switch 2 is coming, they will likely announce it sometime this year.

Just to give some examples.
3DS was announced in March 2010. Released in March 2011.
Wii was announced in 2004. Released in November 2006
DS was announced in November 2003. Released in November 2004.
The Gamecube also had a year between announcement and release. GBA was announced in 1996!

So even if they announced a new system TODAY. It won't come out for about a year. I expect a 2025 release. Only because Nintendo wouldn't want to release a console without a steady stream of releases like they did with the 3DS. They want something more akin to how the Switch launched.

 Eh, a year before launch was the old industry standard until PS4 and Xbox One. They were announced the same year they launched. While SX kept to that. PS5 also showed off the console the same year it launched.  I think it's been proven you don't need a full year to hype up your console anymore. Tho the industry is still not prepared for another SEGA Saturnday lol. (Console was announced and released the same day,dismal failure)

Yes but Seinfeld is like 80 years old now, hence my question

Furukawa just said though the only reason they even announced the NX was to assure investors/consumers that they were not getting out of the hardware business when announcing their smartphone games. 

The Switch only had a real marketing campaign of 4 months from product reveal to launch. 

3DS/Wii/DS/GameCube are ancient history now, it's clear Nintendo doesn't operate that way anymore. Even with software launches, they barely did any hype building for Zelda: Tears of the Kingdom until very late before release. 

GameCube was announced in May 1999 by the way, released in September 2001, so roughly 2 1/2 years. Nintendo used to announce hardware *3 YEARS* ahead of time in the past, Super NES was announced in 1987 by Mr. Yamauchi, N64 in 1993 (the SNES was barely 2 years old in the US market, lol). Times change. 

With the advent of social media and Youtube, you just don't need one year to launch a product. PS5 and Switch were both basically unveiled and launched in 6 months with plenty of hype for both.

Hence my explanation.