With Dragonflight Patch 10.2.6, over 300 Burning Crusade era weapon appearances have been datamined, including numerous recolors of popular pieces of gear like the Shard of Azzinoth, Zhar'doom, Greatstaff of the Devourer, and Thori'dal, the Stars' Fury! As with the Tier 2 armor set recolors also found in this update, the models do not appear associated with any items just yet though, leaving it unclear when, if, or how they might be obtained in the future.
While these are all new entries into the item appearances database, some of them are not actually new recolors and appear to be identical to the original versions already available in the game. Others appear to be brand new or otherwise unused though, such as a one-handed version of Axe of the Gronn Lords that isn't currently available to players in-game or the odd Pistol Shot model added in Legion — let us know in the comments below if you spot anything else that stands out!
An odd standout here is this one-handed gun, which appears to be the model used during the Rogue pistol shot animation, though the ability which uses it wasn't added until much later in Legion.
This staff also stands out as a seemingly brand new model, though it is probably just a previously unused one.