Raspberry Pi 4 Will It Ever Happen?

[Fruitybit]

I'm just going to copy and paste what I put in the 'place your bets' thread here... not to ram it down your throats again, just to get your opinions:)

So, I need to understand what it means when the chip is described as having four layers. Is this the 'four cores' that defines a pi3?

Let's say, just for example, I have a pi3 on my counter at work, and a customer (regular and on good speaking terms with) says something along the lines of
"That's a pi, I work for their development. We're experimenting with a six layer chip rather than the four layer version now"
At which point I would, had this conversation happened, have replied something like
"It's rather important to me that you discuss this further with me promptly sir."
After which, noting my apparent marginal knowledge and interest, this hypothetical customer becomes rather coy and refuses to be drawn further on the subject.

Am I to infer something from this theoretical conversation? Which, in that very same theory could well have gone on marginally longer than my above (purely of course) imagined transcript.

(Redactions and theorem due to promises made, take from it what you may)