I think you've had enough people asking about additional yardage to do another run, if they all got together.
And as far as I can tell, no one has actually seen the final product yet, so we don't really know how it will turn out. We could quite easily start a new run with tweaked colors.
I joined X Marks a few months too late to get in on this project, but I would definitely like to add my voice to the chorus of those who would jump in on a second run if one came together. And having seen photos of the final project, I don't know that anything needs tweaking! Granted, nothing is certain when viewing images on an uncalibrated monitor, but it really looks gorgeous.

Cthulhu Fhtagn!