I would very much like more on all the villages. Konoha may have been the focus the whole series, but not much was covered even then. As Jackellord pointed out, only Uchiha and Senju were focused on. There are many other clans in the village, and most of them received nothing.
I believe hidden sand would have a lot to offer in terms of details. For a start, we don't even know what Gaara's clan was called - only that the clan had the Magnet Release bloodline limit. Even the puppet mastery was merely touched up on, when what we've seen from the Last hints that the techniques originated from Hamura's descendents, so Hidden Sand may have stumbled up on the ruins Naruto and the others found at some point in the past. Moreover, there was the scorch release bloodline, which must have interesting origins as well, given how rare the bloodline was. The village seemed boring and didn't have much to offer when the series started, but it clearly wasn't a pushover, as it was the only one to turn down Hashirama's Tailed Beast deal, instead opting for economy because it already had its own tailed beast.
