Flex 6000 series FPGA potential

Joe WD5Y

I know there is much headroom for growth and potential within the FPGA of the 6000 series. Can someone please share, after all of the road-map features are implemented as to what the percentage of FPGA potential will be left for future growth? I believe the FPGA's potential is defined as logic cells and/or slices, is this correct? 6500 @ 74,496 logic cells with 11,640 slices and 6700 @ 128,000 logic cells with 20,000 slices. Also, these slices mentioned are not the same as what we call slices in SSDR. Thanks and 73's, Joe WD5Y