That would be great, so we could play with villagers with dark skin, like the first europeans were :)

A couple of other ideas: perhaps we could have scouts to locate where raisers are coming from, so we can organise either a bandit hunt, or, if they are from another tribe, a counter-raid or even a raid by our tribe? And I would also suggest that the raiders don't attack the main settlement (unless they have quite large numbers) but use the standard raider modus operandi: that is, they try and nick stuff, mostly herd animals, that they can get.

And, if we do get the Celt idea up and running, we have the workshops gain the ability to make chariots drawn by two horses, with eventually Gaulish-type cavalry, which would make raiding that much more interesting!