To commemorate the 10th anniversary of the Phantasy Star Online for the PC version was announced the official launch is planned for 2011 as announced at the Tokyo Game Show 2010.
It also was announced Phantasy Star Portable for PSP 2 Infinity
Follow the video presented in full at TGS 2010 Japanese audio
ファンタシースターオンライン 2 PSO 2 on TOKYO GAME SHOW 2010
Oficial Site: http://phantasystar.sega.jp/psportal/pso2/