Neji MUST be learning something new, because in the Naruto-is-leaving chapters, Hinata's father (whatever his name is) was finally teaching Neji (we can assume to be the true heir to the Hyuuga techniques). If Neji doesn't know something new, or at least his old stuff is a LOT more powerful, that would be a waste.

I agree with everyone else, if they are wearing the same thing after THREE years, since apparently one year is excusable, (well, Sasuke did change at some point) I will be sickened and disgusted.