On her blog, Melina Marchetta updated us on her travels in Europe, which helped with the setting in Quintana of Charyn. She even included some really interesting photos, like the one posted above, that showed how she imagined some areas and buildings in the novels. (The LE MONT picture was cute!)
At the end she had some answers for the Lumatere Chronicles that readers are definitely interested in knowing about:
"QofC will end the current story. There is no new Lumatere Chronicles in the works, but I think I may write a short story or two about the secondary characters.
And then if I let my imagination wander, I think of Jehr in Yutlind Sud. And whether the Osterians are really as boring as the Lumaterans and Charynites think they are. And if one day the whole land of Skuldenore has to band together because they'll be attacked by offlanders. And of course those bare headed novices in Sendecane."
Trying not to squee over that last paragraph. All we know is that whatever comes next, we'll
(Please do not continue reading this post if you haven't read Froi of the Exiles or don't want to know anything about what happens in Quintana of Charyn! Just giving a fair warning!)