Noticed this at daily quest hub Argent tournament Grounds. Every banner of other factions are up while undercity's is broken down, the banner of slyvannas's previous faction which she was a leader
Argent Tournament Guide - Wowhead News
Eric's Argent Tournament Guide (Alliance) - Wow pro
Championing the Argent Tournament - Guides - Wowhead
World of Warcraft Classic: Argent Tournament Daily Quests Guide