It ended when the 7th gen systems were replaced.

Not true; Wii had a fixed function, 480p limited GPU compared to PS3's HD-ready programmable shader GPU.

Wii U and PS4 are both HD, both use programmable shaders. The fundamental divide of last gen just isn't there.

A generation is the time in which a set of consoles are the leading edge ones; now that PS4/X1/Wii U are out, PS3/360/Wii are no longer on the leading edge.

Oh, is it "make your own definition"-time? A generation is not a time frame but a group of subjects or objects, that fit in a time frame. The end of a generation is not clear-cut in many cases and generations can overlap.

The start of a new console generation is only one of the aspects, hardware and software sales of the older generation have to get insignificant, too... they are far from it now.

"So you also, when you see all these things, know that it is near; at the doors! Assuredly, I say to you, this generation will by no means pass away till all these things take place." (Matthew 24:34) ;)

That's how video game generations have always been; a time in which a certain set of consoles are the leading edge.

No, it has not.

Every Xbox360, PS3 and Wii belongs to the 7th generation. Every Xbox360, PS3 and Wii produced and/or sold in the future belong to the 7th generation.

They are not void, they don't belong to non-generation-land or to the 8th generation, they count to the sales of the 7th generation.

They don't count towards the winning of a generation that has passed.

And who has decided that rule, that after a certain point no further hardware or software sales of a console count anymore?

The United Nations Organization? The Guinness Book? The Mighty Gods of VGC? You? Was it a proclaimed agreement of all console manufacturers? Was it even a question in former generations when the gaps were uncatchable?

It's common sense. You can't win a race after the baton's been passed.

So from what I saw Ninty should launch WiiU2 so gen9 starts and WiiU is the winner of the 8th gen.

About the baby boomers your analogy was weak. To say that because baby boomers are still alive equals baby boomers age is the same as 7th gen consoles being produced is wrong. Your comparison would be baby boomers alive = baby boomers age is analagous to there is atari still working so it's atari era which you are right to say is wrong. The equivalent to 7th gen hw being produced = 7th gen era still on would be baby boomers still borning = there is still a baby boomer era and it would make sense. There is even those people you say that doesn't seem to be from this age.

About the leap comparison all released WiiU games are void and mario can't be used because it didn't push Wii or WiiU capabilities (even though if they average the same use of processing Power they could be used to compare) yet you pick KZ3 (one of the best graphics on ps3) and KZSF (a launch title that don't push ps4). Why didn't pick alone in the dark vs FFXV trailer to show ps4 leap?

And to say ps4/bone won't improve because they're off the shelf is to ignore customization and tweak and pretend they are close to use all capabilitie. They may be easier and inprovement be fast, but that doesn't equal small.

And about not being a clear division. Can WiiU do raycast? 7.1 Dd? Competitive Mp? Track head movements? We can keep going. You are just wishfullying hoping devs will care about WiiU small userbase and dumb down their game... Even tough they haven't done it when wii were dominating or when sony first entered the market without a single console sold.

If there isn't separation between wiiu and ps4/xbone why would there be with ps360? Because you used this excuse for bad ports (different architeture) and forgot WiiU architeture is different from ps4/xbone. And what is worst is that WiiU was easier to program than ps3 but will be harder than ps4. But why would you care since ninty supporters doesn't buy many 3rd parties?