1. This is certainly a topic of frequent discussion both inside the manufacture and outside in the community. Before considering specific materials and/or metals, I think that they should compliment the current options. By either providing a different look or oerhaps a different price point, then the material can successfully augment the initial 3 choices. If I recall correctly, however, there is currently not a huge gap between the prices of titanium and rose gold and palladium. In theory, steel would offer a lower price point, but would it be significantly different? If so, then it could open QDI to a broader market. Ceramic is an interesting possibility because it possesses a very different look and feel. Personally, I would be quite interested but I am not sure if it is truly "VC". Tantalum is yet another interesting possibility but I am concerned if it offers enough of a difference from the current metals in terms of price and appearance.
2. Where to begin?
The open design of QDI would provide a great platform for a tourbillon. A beautifully finished tourbillon would marry well with the look of QDI to create a very contemporary looking timepiece that carries forward the theme of fine craftsmanship integrated with modern design by VC. A chronograph is probably one of the more popular choices and perhaps QDI could be a collection in which VC's in-house chronograph movement is eventually integrated. Lastly, and this one is from way out there
, how about a repeater? Once again, the QDI design could lend itself well to being able to see the chiming gongs. Okay, this won't be a huge seller (what repeater or sonnerie is?) but it could be truly magnificent.
3. I will concur with my fellow Loungers and say "yes" but on the condition that it can be delivered in a reasonable timeframe and also not negatively impact the delivery times of other models. Choices and options are terrific but there is always a cost and I fear that in this case, that cost might be time. As I undestand it, the current delivery timeframe for customized QDI watches is reasonable and if that standard can be maintained, then I am for it.
Okay, I think I misstated when I said, "a few thoughts..."