I think a B&M for the Air carpark could happen but more likely to be an Intamin or Mack, if we can't have a B&M, I want an Intamin ground hugging accelerator coaster with inversions or a LSM/LIM launch one, but both with inversions.
If it was a B&M, what ride type could we have,
Sitting-Might be too tall unless it was compact like the Smiler should be
Floorless-Might be too tall again, unless it was compact like the Smiler.
Hyper-Too tall for the air carpark.
Wing-Thorpe have one and Alton might not want to take the shine of the Swarm away.
You never know, we might even get a bobsled coaster.
I think out of them, a stand up seems like a fairly good idea. It would give a new coaster type and a different ride experience for guests. To be honest, I really want to ride a B&M stand-up, never been on one. Only shock wave at Drayton Manor and that's not the most emersive layout..