What sorts of maps do we need?

[Jason_Lutes]

I've finished up an Early Ages scenario map that's still being tested, and I'm thinking about what sort of map to tackle next.

The main question I have for the Dominions community is, where are the worst gaps in map selection? We have the map generator, of course, but augmenting that with a good selection of custom maps seems like a good idea. With that in mind, what sorts of custom maps would you like to see? What size (number of players, provinces per player) do you feel is most needed?

Any feedback would be appreciated. I'd like to make maps that fill an existing need, so let me know your ideas.