One of my near future boards is a factory board of some kind, or rather an industrial site that can be place on the same 4x4 sheet that I use for urban. I'll be using Necromunda and Platformer/Hexagon sets as a starting point but not the be-all end-all for the project. The idea is that it is modular, made of constructs rather than set peices, has some color rather than being just drab grey, and could be just about any industrial site from a chemical plant to a steel refinery. Sean Patten's Necromundicon website is just one inspiration I'll be using to develop stuff from.