The Archaia Press hardcover Mouse Guard collection (see 'Random House Gets Mouse Guard Trade') has already sold over 25,000 copies since its release last month, according to publisher Mark Smylie.  The largest portion, around 11,000 in initial orders, went to bookstores and libraries.  About 7,000 went to comic stores, and 5,000 are going to the Science Fiction Book Club.  Another 4,000 to 5,000 copies worth of reorders have already been placed. 

Meanwhile, creator David Petersen has slated three more miniseries after Winter 1152, which launches in July.  Two will be prequels, set before Fall 1152.