For colors - besides deep indigo, I'd love to see white and light grey, the second probably stonewashed.
I had a pair of light grey Carhartt jeans which I loved and wore till it fell apart. Great summery color for people who don't dare to wear white.
For the hardwear, I very much like the buttons and rivets of APC. Much prefered silver in color over copper.
You can have a look over here.