On their website they state 更多 2011 tour dates to be announced. I'd look to see if there are possibly any 音乐 festivals happening after July as they may play at them (since they're doing a few festivals elsewhere)
They also have 2 USA dates so far; 16th of April in Sunrise, Florida, USA and 17th of April in Tampa, Florida USA. So it could be they're doing USA tours during fill in days.