Kurzweil has a lot of keyboards manufactured recently. Their cheapest is the KP30 which basically is a Casio MA-150 redesigned by Medeli (MC-37) and they have the KP-300x which is a Medeli MC-710 with a different casing and higher polyphony.

This seems like the end for Roland unfortunately. The EXR was a great range of keyboards and even the GW range was very good and they weren't too expensive..