From October to mid 2011. What usually happens with a wet lease is to dedicate it to one route to save crew dead-heading. The last was to HKG with a stop en-route at least on the way back, sometimes both ways (Southern with a -200F was last used). The normal stop is ALA or GYD although Southern (or was it AAI?) used Karaganda. Not saying this will be the case this time though.
Enjoy - Karaganda in winter sounds like fun! (ALA or GYD are bearable).