...Really, the Hall only has, like, half a dozen statues, tops. These absolutely have to be rotating spots, then, save perhaps for Kahless' likeness. And even that one might get constantly revamped to suit the Zeitgeist of the Zeit in question.
If the Hall of Heroes is the same thing, and both Kang and Koloth got their statues there after "Blood Oath", then these spots must be rotating every three weeks or so. Although probably mere Heroes are one rung down, and only the top ones ever get promoted to Warriors and moved upstairs.
Timo Saloniemi