The unkown is how sweet and spiced the blueberry sauce will be. If made from fresh blueberries with little or no sugar and spice added, then a wide range of up to rather dry wies might work. If made from frozen sweetened blueberries, blueberry jam, and/or if highly spiced with cloves, cinnamon, and such, you have a very different animal.
If the sauce is somewhat sweet, I might try a late harvest Zinfandel that has a bit of residual sugar but that still has good fruit. Ridge has made some such Zinfandel in the past.
I believe you can shop in NYC where you can find a huge selection of wines. You might try a Ruelander Spaetlese, or even auslese if the sauce is rather sweet, from the Kaiserstuhl region of Baden in Germany. Some good wines are made at Steinfelsen, Achkarren, and Ihringen. These wines can be difficult to find in the US, so you probably will have to experiment with the few you can find. These wines have much more body than most other German whites.
If the sauce is somewhat sweet, you might try a Recioto della Valpolicella. This wine is slightly sweet, unlike Amarone, but is rather strong. Even a sparkling version sometimes is found. This wine is made by many of the better Amarone producers such as Allegrini. However it can be very difficult to find in the US. You probably can find a store in an Italian neighborhood of NYC that has it. Yes, I know many turn up their nose at a somewhat sweet red wine. However I have observed that many of the same people will gladly drink your vintage Port. Just because much of the worst US red wine was sweet in the past does not mean that all sweet red wine is bad.
An interestng garnish for the dish might be some preserved fruit with a bit of mustard in it. This sometimes is imported from Switzerland. It tasted much better than I thought it would, and the mustard taste was rather smooth and mild.
My mailbox is always full to avoid spam. To contact me, erase snipped-for-privacy@webtv.net from my email address. Then add snipped-for-privacy@yahoo.com . I do not check this box every day, so post if you need a quick response.