Hello I have discovered a weird Easter egg in the Avalon arena in Wizard101

I have recently discovered when watching one of my friends' PVP match that there are statues of characters from Avalon immortalized in stone (statues in other words). These characters are: Merle Ambrose (he's based off Merlin), Morganthe (Based off Morgana Le Fay; King Arthur's half sister), King Artorius (based off King Arthur) and Gwendolyn (based off Lady Guinevere; King Arthur's wife). I am enclosing the images of these Easter eggs.