The Japanese version of the SGS3 was announced. Comes with the S4 and LTE And 2GB ram! Check out the specs here-
http://www.samsung.com/jp/galaxys3/index.html?pid=jp_home_thelatest_main_galaxys3_20120515
http://www.samsung.com/jp/galaxys3/index.html?pid=jp_home_thelatest_main_galaxys3_20120515