VAIIYA Grid
Towards the end of Season 5 a VAIIYA grid appeared over the ocean near the campus portion of the arena. It was verified by Robert Runesson that it is a lore decoration.
Museum Tune
It is currently unknown if this is connected to lore, but the museum building has a slow distorted tune playing that happens to be from a bar inside the Glamora Casino in the Las Vegas arena. It is possible that this is merely another connection to OSPUZE and Sofia Petronelle.
Original Tune from Museum:
@ 300% Tempo Increase:
Original Tune from Glamora Casino: