Vexus is taking a bit of a break atm with school (as I have been from my music) But SSK is still in production, and Most likely, there will be a new DEMO for the next SAGE... Don't quote me though, I'm only guessing.
I always loved the music in Sonic Battle and felt the entire game was horribly underrated. This is a pretty awesome take on one of my favorite tracks from the game. Top notch stuff!
