Okay, now that we have the full costumes of this AWESOME pack, I'd like to make a few predictions.
1) Costume destruction is going to be standard feature on costumes eventually. This will mean that costumes can by fully-loaded, but still have an optional skimpiness, such as Ein going from full armor to his trademark fishnet.
2) The increased costume prices of these is going to become the new standard, while fetish DLC will remain in its usual price. There's no way to go from bikini to skimpier bikini unless TN wants to truly go M-rated, but in Japan that'd make the game R-15. However, this could be a good thing. While fetish DLC will still sell well because it's cheap, the DLC they actually put effort into, because it is both skimpy and decent at the same time, will be more expensive, thus TN can get a bigger draw on them. If TN can make twice as much off good DLC like this, then it'll encourage more.
I hold the belief that cosmetic DLC is good because it gives the art team something to do. Since for a destructable costume you need to design essentially two costumes, the increased price is justified. Having this become the new standard could mean that costumes will get better, but still be just as fetishistic when destroyed. Otherwise, it'll just be the final straw for DLC with increased rates meaning less sales. I know for a theory that this will become standard in DOA6.