Saw some video where Sophitia's boots were blown clean off and she was just barefoot for the rest of the fight, which means region-specific armor break is still in, and that means customization is still in. Also critical edge now seems to have some kind of finishing animation when it KOes, so it's sort of like critical finishes are back. This game is going to be so good.
This must be the video you were talking about... (is featuring the Japanese voices of Mitsurugi and Sophitia, btw)
Things I noticed and observed:
1) I LOVE the new HUD. Nice, thin yet sleek, doesn't get in the way of the action, and pretty cool looking IMO. Attacks don't seem to do as much damage as they did in SC5 (around SC3 and SC4 levels), which is great by me. I love long battles. Speaking of long, the presentation of the stages are a reflection of that; as the rounds count on, the stage (most likely Sophitia's here) goes from mid-day to afternoon setting sun. It's quite beautiful.
2) Characters still have super meters (introduced on SC5), which reflect the cinematic supers we saw in the first two trailers. Also, the guard break mechanic from SC5 seems to be back as well as early on Sophitia's lifebar was flashing yellow as she blocked Mitsurugi's attack.
3) Area-specific clothing/armor destruction is indeed in, as you stated. Looks like it also may have multiple "layers' to the outfits as battles seem to have heavy attacks causing 'breaks' more than once per battle.
4) They brought back the original Soulcalibur 1 K.O. animation! (seen at 0:50 seconds), and also a BIG win for me is that not only does the action stop on K.O., but the "K.O." text moves out of the way once movement picks back up again so you can see Sophitia fully collapse when she loses. I liked this one a lot better than the one that replaced it back in SCII onwards. Also, THANK YOU for keeping replays, Namco. Can't stress that enough how that ticked me off that Tekken 7 took them out.
5) The lifebars have little hashes in various points, one at 50%, and others at 30%, 20% and 10%. I wonder just what they do...
6) At 3:15, the replay camera's movement is back! And unlike SC5's, it doesn't keep snapping into place if you're not moving the controller!
7) At 5:05, after some epic cinematic clashing between Rugi and Sophie, Mitsu lands a massive hit and UTTELY destroy's Sophitia's top armor, hair decorations and ponytail, leaving it completely freeflowing and broken just before he rings her out. So, combined with the previous view of her without boots... if you're REALLY vicious you can potentially COMPLETELY ruin a girl's looks in this game over the course of a long battle, from their prestigious and well kept looks from the start of the battle to an utterly broken mess of a woman by the end of it all. Gotta say, that's possibly gonna be a REALLY big ryona draw in for a lot of folks.
8) 5:38, another cinematic clash. Here, once again Rugi wins and does a new series of attacks, forcing Sophie to her hands and knees in front of him once he's done (new victim 'stun'' animation). Looks like you may be able to punish her more after this as well, but for this instance, Rugi let her off the hook so she was able to recover.