Blizzard published a video highlight of their recent Warband Preview Article. In the video, they highlight exciting parts of the system, including easy transfer of currencies, most achievements becoming account-wide, improvements to transmog collection, and more.
Video Highlights:
- The new Warband screen shows all your characters, regardless of realm
- Warbanks make it easier than ever to share resources between characters
- You can easily transfer currencies from alts to your current character using a new button in the Currency Tab
- All Flightpaths are now account-wide.
- Warband Bound Gear will make leveling alts easier than ever
- Any character can learn any transmog piece now (save for class-restricted one like tier sets)
- Renown progression is now shared with your Warband. This applied to TWW and Dragonflight factions
- Most achievements have account-wide progress now, including ones like Warsong Gulch Veteran and And We're All Out of Mana Buns. Few restrictions apply; read more about it in their blog post below.
Read more about Warbands in Blizzard Official preview:
Blizzard Official Warbands Preview
Read more on wowhead.com