TRAX
They haven't been active since Jan 2007, around when Typhoon severely blew his voice out. I'm dying to hear more from them! They barely got their feet off the ground.

BoA (Korean)
Nothing real since June 2005's Girls On Top. It's been over three years! It's about time something happened, chica! Tick tock!

Ryohei
ReListen was released in Feb 2007, and it was fantastic! Since then, he released Cavaca and Cavaca 2, but they were only cover albums. He's releasing a 2-disc best compilation next month, but with such little original material, it's mostly songs by other artists with Ryohei as a featured singer. Nothing exciting.