How do the raids work, exactly? Does the overlord just teleport away with the minions and teleport back after some time with the loot and maybe spawn a counterstrike at the edge of the map?
Or does the overlord teleport away or leave off the edge off the map with some minions, raid an in-game town, killing off or grabbing some of their historical figures, and bring back some loot deducted from the items of the town, perhaps with a raid following them?
I would suggest some new commands targets:
Harvest a nearby grassland, swampland, shrubland, forest, or jungle for wood or plants. Obviously, logging doesn't work too well in grasslands, but you might get some plants from the area. This risks triggering an elven attacks if you are in contact with an elven civilization. This needs a large supply of axes and either warlocks or vehicles to levitate, teleport, or otherwise transport the haul around. It should be possible to dig up a haul of treasure as well, with a low chance. It would be great to get some aligned plants, too.
Raid a city. This should be difficult to do, but potentially have large rewards.
Do you think it is possible to simulate setting up an outpost off-site yet? Something like "assign minions and pylons to mining camp". Minions stay until you either call them back or the place gets raided and they return, followed by a raid.
How sophisticated is dfhack at the moment? Can you, playing fort mode, call up a map of the world and look at the things on it or get some information from it?