I am sure it will happen. The older chip does not share the performance of the G4 unit. Also the Digital input will need to fall in line with rest of the range and get X2 HDMI inputs. It would simply be in the their advantage to upgrade as soon as possible. As the G4 is being used in the 45 and 50" sets the 56 must follow. The 56 would benefit most from the upgrade as the screen size stands to loose the most quality from a lower quality chip due to the bigger form of projection required.