pertaining to what exactly, the way to dawn?
If it's that bad looking of a copy, then it isn't much of a copy is it? Might as well be it's own thing, which the TAV keyblades are.
Well good news there, the three keyblades of the current times in KH are not connected to the TAV keyblades. They were only used for the concept video of BBS to show connection between the current day wielders and TAV. When you think on it, it doesn't even make sense for the keyblades to be related as you're suggesting, putting KK and IKK aside for now. It was in Another Report, right? That said there were as many keyblades as qualified hearts. That indicates that the keyblades aren't likely to repeat themselves in model because they would be with different hearts, like how Riku's WtD was formed. The KK and IKK seem to be different as they don't come from an individual if you know what I mean. Mickey even went searching for the IKK so its existance as a keyblade was already determined. That being said I doubt the KK and IKK would be related to the keyblades used by TAV especially when looking at them as bad copies with all these additions. Those would be better seen as upgrades, which implies the KK went from being how it is to the mech variety not the other way around.