I've said already, a shrink is the least you need to call it new generation (and change the first digit in number-game).
You didnt reply me directly, BUT, taking from this.

The move from Pentium 4 Cedar mill x86 CPU ,based on 65nm process, to a Core 2 duo x86 CPU, based on the same 65nm process, in your EXPERT opinion doesnt qualify as a architectural change.
Mind blowing man.