Looks like the Wonder Girls are returning to their homeland Korea! after staying in the US for the good part of the year. They have successfully made their stand in the US and they are on their way home to Korea.
Based on their tweets, looks like theyr coming back to korea to practice for their concert in Shanghai, China on the 1st of December. They're coming home and theyr going to be busy. You can tell they're pretty excited coming back to Korea; There's no place like Home.
Source: Twitter (Yeeun, Sunmi, Yoobin, Sunye) + Sunmi's blog, Sunye's blog; omona; Blueprincess824 @ DKP