The Gnomes are in, though I hope c_note will be able to provide better artwork soon.
Well charters are a way to keep civs in check, to keep the map open, encourage city building, and allow victories to develop on large maps. If you want to expand a lot, the Evil alignment tree is best. I may yet add in a new type of city (Colonies) that will be something like expensive puppets that don't require a charter to found, but that will require a lot of AI work. In v.12, Level 3 cities can produce a new Charter, allowing you to chain expand, though it does take a while to work up to 10 population.