What I'm hoping for is a two-tier mapmaker. On one level, you have the standard Forge-style map editor, tweaked and perfected but ultimately the same core concept. But you also have a copy of a fully-fledged PC mapmaker - you can scape the terrain, add new textures/objects/effects, and so on. Would be really good for customs, especially as literally everything we've asked for - weather FX, interactive objects, AI, blah blah blah - would be within our reach.