This an idea for what I called WvW Meta Event Rotation, in which certain meta events in WvW trigger doing different Meta objectives in a random rotation still set on a timer trigger.
Airship Battle WvW Meta Event:
Once this meta starts, three main Airships will start flying around the Eternal Battlegrounds, one from each faction.
Main Ships have cannons and have a launching Pad to board enemy Airships with a parachutes. Gliders disabled during this meta, but Parachutes can be used to get around, but with risk of being shot down.
Asura Arcane-copter can be mounted and used to assault the enemy main Airship and other Arcane Copters.
The goal is to kill off enemy Airship captains and destroy the Airship while defending your faction main airship. Last Faction Airship left standing gets access to the Airship bombers that can be used temporarily to attack ground enemies. Also grants large WvExp.