Your second set of pictures lets you see more of the noise reduction features:
The differences I see compared to my lian-li pc-60:
1. You can see sound dampening/absorption material lining the front door, the inside drive bay edging, and lining the side panel(s).
2. A new front door to act as a sound barrier (and cover your drive bays)
3. They've removed the two front intake fans to reduce noise
4. No top fan exhaust (another noise reduction change)
Other than that they did not change:
1. Same stamped rear fan grill instead
2. No grommeted hard drive mounts (that you can see in the pictures at least)
3. No change in thickness of aluminum or enhancement of structure (this is a guess since all the lian-li parts for their various cases seem to be interchangeable to a degree)
Which leaves me wondering one big question:
1. If I were to switch to this case I'm sure it would make my system quieter, but with only one rear case fan I'm wondering if my quiet (but hot) components would tolerate the environment for long.
Personally If I were to change a Lian-Li to make it more quiet, I would keep the front intakes (they're speed adjustable anyway), keep a door to cover the bays, slap on the noise dampening material like they've done, grommet the hard drive mounts, get rid of the top blow-hole, and improve the rear exhaust grill.