Why? The cockpit of the 189 and 169 are modeled off of the 139. The dynamic component layout is also taken from the 139 and modified for the 189 (which is one reason why the MR Lag Damper issue affects the 139 AND the 189). The 139 is the first AW member of the new "family". Words taken from Leonardo themselves. I'm not saying that the 169 or 189 will make more money than the 139. The 189 certainly won't. The market for that size helo is not as big as the 139 market.
So what needs to be reviewed????