Upgrade to Radias from MS2K?

[Q]

I'v own a MS2000 for a couple years now. I have considered upgrading to Radias, although I still find myself learning and making new sounds with MS2000. I love the layout of the board and it seems like a great learning tool. I would like to know if there is an approximate release date for the generation of synths like this. I would like to hold on to my MS2000 until a successor to the Radias released. Does anyone know when this might be? Will the price for the Radias go down anytime soon?

Thanks,
Q