Janet, I can't reply to PMs....here's my response.
Janet,
I added a TBL of coarse Dijon, then filled the 1/2 cup with regular Dijon. That may have made mine a bit more intense. I think cutting back just a bit would help if you're concerned. I was more worried about the maple syrup. I've gotten TOTALLY spoiled with light Canadian pure maple syrup and all I had was the darker pure generic stuff from the grocery store. Happily, it wasn't overwhelming, even at 1/4 C.
The wine would work, but I wouldn't add much. This ratio ends up thick enough to coat, with not much left over. Another option would be apple cider.
Your meal sound delightful.