"At present the 155 offers nothing that you do not already get from the 76 apart from the fact that you can say you have new technology"......And....
....longer range, better payload, bigger cabin, bigger boot, faster, smoother, decent cockpit ergonomics, good vis, and a great 'pole'.
At least with the 'D' Sikorsky seem to be stirring from their slumber to smell the coffee in Marignane and Milano, even if it is still 3 years away.