Whilst I do like the ride design and layout, this is Merlin we're talking about!
They won't accept anything for a Secret Weapon unless it's a 'World's First' or a prototype coaster design.
I mean, if Merlin wanted to be creative but retain the flying coaster idea, maybe look at something like F.L.Y from Phantasialand from Germany! A LSM launched flying coaster, imagine if they did do something like that to spice things up!
(Heck, just look at this POV from F.L.Y! Now the question is, could something like this work in AT?
From: https://www.youtube.com/watch?v=c-30ewAQIrk
)