They released 1200cc was geting smallish for a "real" cruiser when 1500-2Litre ones came into market.
R1200C was probably the best handling cruiser in the market tho.
Recently some rumors were going on BMW is apparently working on a 2 litre boxer
prototype for cruiser, but nothing much more heard about it. BMWs current typical "greenpeace" style of marketing (EfficentDyamics, diesel technologies etc), rising fuel prices and EURO regulation probably will kill this project
But on the other hand by not entering the cruiser market they lose some fair share from their sales (mostly in the US).