They weren't even sporting anything spectacularly outstanding like early X, just the toned down stuff which reflects a combo of influences from Jrock fashion, some elements of goth, and a little hairstyling. The most fashionable since the reunion is definitely Heath for most concerts. I'm thinking they'll wear something similar to what they had for the Lollapalooza gig, and the somewhat similar outfits at the Yokohama lives.
Personally, I really enjoyed the outfits they had for the Lollapalooza gig. But i'd like to see some of Heath's outfits from the lives in March of 2008 come back, they were the best Heath outfits in my opinion.