Blizzard has some big plans for Diablo III. In fact they have a ton of new cosmetic items planned for release in the next major update... patch 2.4.1. They don't just have a ton of new cosmetic items for players to deck their characters out with, they also have some brand new pets as well.
GameRanx rolled out the massive list of cosmetics that were actually data mined by a user from the player test realm (also shortened to PTR) version of patch 2.4.1 of Diablo III. The list was compiled together by Battle.net user Lumamaster who has a comprehensive post on Battle.net listing every single new cosmetic item that Blizzard has added to the game.
The list of items is a little too long to paste here and it's constantly expanding; in fact the list is actually longer than most Diablo III changelogs, that's how much stuff Blizzard is stuffing into the newest update. However, YouTuber Bluddshed has a five minute video briefly covering a few of the cosmetic items that you can add to your character as well as some of the new pet skins that will be featured in version 2.4.1. You can check out the video below.
So if you can't watch the video and you don't feel like scouring through a long list of data files with patch filenames, some of the items highlighted in post includes bat wings, butterfly wings, falcon wings, transmogrified swords, axes, helmets, flails, and even maces.
Some of the pets include a fallen hound, a teddy bear, a voodoo doll, a squire, a goatman, a hooded nightmare, and a floating skull to name but a few.
Many of the high-quality items that players can use to deck out their characters in Diablo III can only be acquired from the bosses littered throughout the game. As noted in the GameRanx article, some of the cosmetics can only be obtained from beating uber bosses, while others are dropped from sub-bosses and others still can be acquired from unique enemy mobs from various Acts.
These new cosmetic items would surely add a lot of visual flair and unique personalization for player characters in Diablo III, in addition to the customization options already available such as the armor dyes and the visual armor varieties currently in the game.
In a way, it's weird that Blizzard has implemented more MMO-style customization to the game, but I'm sure a lot of gamers will want to deck out their higher-level characters with some of these new transmogrified items and the cosmetic add-ons like the wings and helmets. That's not to mention that the glowing skull dog for a pet really adds a lot of flavor to the appeal of some characters in the game.
There's no release date for patch 2.4.1 for Diablo III but if it's already in the PTR then it's likely coming sooner rather than later.