Vortex should be moved to Movie World to replace Doomsday. Vortex's location at Sea World should be used instead for a Ferris wheel for scenic views of the dolphin pools, ski lake, as well as providing a visual weenie for guests entering the park.
To further this, SW has no need of 140cm filler, and Trident even if worked would not provide enough capacity for the family crowd. A thrill ride next to dolphin pools, while not cruel, is not a good 'look'
Doomsday is MW's biscuit, and needs to go. Vortex could actually add needed capacity that is unused at SW.
Comment, and tell me I'm wrong. I dare you.