The sales are actually gearing towards the end (except for Isetan, which starts on 7/17)
I've looked around, and shoe sales (in general) have been quite uninspiring. Unfortunately, not many choices for big sizes too (I asked Sanyo, Otsuka, and World Footwear Gallery for Miyagi Kogyo and Central Shoes). Isetan tends to have a wider range of sizes for sale, so I'll keep an eye on that.
Isetan carry some lines bigger than 9./9.5 but it is still the minority of the overall product range.