I stuck it into A Proposed Revision 🖊 - but the one thing I’d LOVE is a Crash Bandicoot styled gauntlet in a raid boss fight. The way I tied it in earlier was to have the Horde/Alliance assault Azshara’s palace, and the whole thing starts to cave in - so both factions retreat.
They’d have to leap over gaps in the floor, dodge crumbling columns and walls, and stay ahead of the tidal wave chasing them down the hallways. I really dig boss mechanics that involve the environment.