Sadly, they won't do this. I've called and I've asked, but....nada. My biggest hang up with the non tilt back Modern design is that side adjust truss rod. I don't know why W is so stuck on this design. I do not like the squared off neck heel of a standard Fender based body. The non tilt back necks does not allow for cutting the neck heal like a Fender Elite / Ultra design, as well as not having a headstock position truss adjustment.
With the 7/8 platform, they could offer so many other options,...including tilt back necks, body blanks, other body styles, etc. So much potential with this platform.
I like W's quality, and they do offer a pretty good amount of options. However, I do find growing frustration in the limits of options for certain things from them.