Now I have to think of more specific ideas for potential sequels. I dug up the rough outline for book two, and it seems pretty solid, if lacking in detail. Now I need to come up with something more ... substantial.
Looking ahead, there's also a possibility of a third book. For the moment the working title for that is probably 'Horizon's End'. Not a bollocking idea what that means, but it sounds not bad, if a touch ... meaningless, and it is only a working title. So there you go.
I was most amused to watch a trailer for 'Grindhouse' online the other day, noting that one of the main female protagonists was called ... Dakota.