Japanese for me too. I'd be finally able to play some of the RPGs that never make it here, and maybe an occasional dating sim.
Seriously though.. I wish I knew all the languages my mom knows. She knows like 20+ languages, including Japanese, most of the Chinese dialects, Vietnamese, etc.. :Q
I did know Chinese for a brief 3 years of my early childhood, but once I got into school, I basically forgot it since I never used it much..