I'm sure JD can speak more to this...but my understanding from John Brook is that the blend didn't change at least six months before the show from the samples that were being handed out... he had no idea if/how many times Steve changed it before...
That being said... the wrappers definitely don't look the same color, but there are plenty of explanations for that...
I find the pre-releases to be a bit lighter in color regarding the wrapper.