I think the new baby to be born soon...will in fact be a beautiful baby!

Let me tell you why, The current model is already superb, If Korg is comming out with a new model...it will be significant, bacause to add some sounds/styles ect would have been OS, not a new model.
They could just make you pay for new styles/sounds like Yamaha does.

It will be much more.
It's just a guess...I think they added KARMA, Flash RAM, Styles, DNC sounds, maybe more fills, etc.

Lee S.