I sent an e-mail to Vekoma about the Deja Vu accident in Georgia. There responce will give you a clue to when they should open:
"Dear Travis,
Thank you for your e-mail.
We would like to inform you that in your e-mail you are referring to an
incident during testing.
The Giant Inverted Boomerang ("GIB") rides are all to open in June. As the
GIB is a prototype based on our technical experience with the Invertigo,
Boomerang and Hammerhead Stall we are conducting a 3 to 4 weeks test and
commissioning period.
Kind regards!!"
Hope this helps you.
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Next up: Stupid human tricks! Followed by: Stupid pet tricks!
Why can that never happen?