On the 2nd, BIGBANG announced they would be restarting activities in  Japan after 8 months. They plan on releasing a new song in April and  having an arena tour in May.
Since the release of “BEAUTIFUL HANGOVER” on August 25, 2010, all of the  members have been focusing on solo activities in Korea. T.O.P (23) was  awarded the best new actor award for “71: Into the Fire”, which will be  in Japan starting on the 19th.
The group has been waiting for a good time to come back to Japan this  year. The tour is expected to have 7 stops with 90,000 people in  attendance. They are planning to surpass their first Japan tour last  year, which 50,000 people came to. T.O.P enthusiastically said, “We want  everyone to quickly see our power up”. Leader G-DRAGON (22) also  commented, “Let’s have a fantastic year”.
In commemoration of the tour, all Uniqlo stores will begin selling collaboration T-shirts on the 5th.
+ From another article) Their tour will start in Osaka on May 10th and  11th, stop in Tokyo from the 13th to the 15th, and conclude at Nagoya on  the 17th and 18th.
Translations from 
gator_yoong + vitalsign@akp
Source: 
Sanspo + 
Daum