They should have a "Classics" vendor for old Vanguard and Crucible vendors. As the The current weapons are going to be dropped too, they can make it so that these "Classics Vendors" should be on timers, and randomize the lists (as bungie love random), and not always have the same lists. The two vendor's should also be right next to eachother, and bicker as to who's inventory is better. -- Or at the very VERY least, let us at least find them again as engrams, please?