They added 5 yards to the 3-8 irons, left the 9 at 135 and dropped the PW to 120. The meter seems about the same but the biggest thing I've seen so far is that the middle irons actually hop backwards when they land with spin in certain conditions. The rollout of the longer irons is easier to control and you find yourself attacking pins where in the past you might have finessed the shot.
If you play by feel like I do there is a little bit of learning to do but for the most part the way the longer irons act is enough to warrant getting them. The PW only punches 103 but with the drop of 5 yards in the full swing it isn't a big deal so the gap remains consistent at 15 yards all the way up to the 3 iron.