Oooh, the markers will be very helpful, something I didn't realize I wanted. I'm also very interested in the bit about dungeon delving pieces. Would this also include general underground biomes/environments? It'd be interesting to see webbed territories, magma chambers, dark pits, glowing fungi, or other varieties of spelunking fun.
In respect to the hex outlines, would these be fully encompassing or segmented? It could be nice for marking territory borders.