Conventional wisdom would point to chardonnay as a logical choice, ideally with some bottle age.
Roast turkey certainly calls for a white wine with texture and richness or even opulence, which is why this year, my perfect match is Seresin Pinot Gris 2008.
One of my personal favourites in Seresin portfolio their pinot gris is made in style that one associates with the Alsace region in France with a textural richness and complexity yet has very little oak influence.