I'll chime in here with what I know from my rep in Southern California. We currently know that there are no high end arrangers still available for sale from Roland USA. No G70s and no E80s are left. I've also been told no E50s, E60s are left.
So, there are only GW8s, Preludes and the home digital pianos (KR series).
When I ask if there will be new models coming I get a "we don't know" from the folks at Roland.


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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com