Let's have a quick pause and actually just map out all the possibilities of the three manufacturers it's generally agreed are most likely: Intamin, Mack and Premier. EDIT: totally forgot Vekoma, will do them in a bit.
Premier
LIM-Terrain Following Coasters (The Italian Job: Stunt Track)
Could be a possibility,
track type is correct and these obviously have the capacity for (backwards?) launches. The unique ride cars could be themed and really made something special. Against: none of these rides contain lift hills so far and are quite low capacity.
[s:uhm4smtm]LIM Dark Coasters[/s:uhm4smtm] (Revenge of the Mummy)
SW6 is not inside for almost all the ride.
[s:uhm4smtm]LIM Catapult Coasters[/s:uhm4smtm] (Rock n Rollercoaster)
[s:uhm4smtm]LIM Double Launch Shuttle Coasters[/s:uhm4smtm] (Speed - The Ride)
[s:uhm4smtm]Diving LIM Shuttle Loop Coasters[/s:uhm4smtm] (Mr Freeze)
All these rides focus on high speed launches at the beginning.
[s:uhm4smtm]Dueling LIM Shuttle Loop Coasters[/s:uhm4smtm] (Batman and Robin: The Chiller)
SW6 has only one track.
[s:uhm4smtm]Liquid Coaster[/s:uhm4smtm] (Buzzsaw Falls)
[s:uhm4smtm]Water Coaster[/s:uhm4smtm]Plans show no splashdown section.
Steel Coaster (Runaway Mountain)
Hard to make out track design on this one based on
this photo but the only one built was in 1996, and generally looks dated and nowhere near the quality needed for a Secret Weapon ride.
[s:uhm4smtm]Wood Coaster[/s:uhm4smtm] (Wild Wild West)
[s:uhm4smtm]Pipeline Coaster[/s:uhm4smtm][s:uhm4smtm]AquaFlyer[/s:uhm4smtm] (Rollersoaker)
[s:uhm4smtm]Bat Flyer[/s:uhm4smtm][s:uhm4smtm]Gyro Flyer[/s:uhm4smtm]Completely wrong track design.
[s:uhm4smtm]Junior Coaster[/s:uhm4smtm]SW6 is obviously not a kids ride.
Source: PremierIntamin
[s:uhm4smtm]Mega Coaster[/s:uhm4smtm] (Superman - Ride of Steel)
[s:uhm4smtm]Giga Coaster[/s:uhm4smtm] (Millenium Force)
Too high for Alton.
[s:uhm4smtm]Accelerator[/s:uhm4smtm] (Rita)
[s:uhm4smtm]
Wing Rider[/s:uhm4smtm] (Furious Baco)
SW6 doesn't start with a launch. Couldn't possibly be unless it was a new kind of Accelerator with lifthill and backwards launch capabilities. Two in one area is also unlikely, though Air and Nemesis's ride types are very closely related and would the GP really notice?
[s:uhm4smtm]
Vertical Lift Coasters[/s:uhm4smtm] (Fahrenheit)
Layout of SW6 doesn't feature a vertical lift.
Mega-Lite (Kawasemi)
Could easily be this, with some additional effects for the "mystery section" we know Intamin are capable of. This ride is well known for giving an intense ride with a small lift hill, and you can easily imagine SW6's layout fitting with a mega-lite. Capable of switch-track, as seen in
this photo. Bi-rail track can be used as seen
here.
[s:uhm4smtm]
Motorbike Coaster[/s:uhm4smtm]
SW6 doesn't start with a launch.
[s:uhm4smtm]
Wooden Coaster[/s:uhm4smtm] (El Toro)
[s:uhm4smtm]
LSM Coaster - Surf Rider[/s:uhm4smtm]
[s:uhm4smtm]
LSM Ball Coaster[/s:uhm4smtm]
[s:uhm4smtm]
LIM Impulse[/s:uhm4smtm] (Wicked Twister)
[s:uhm4smtm]
ZacSpin Coaster[/s:uhm4smtm] (Inferno)
[s:uhm4smtm]
Suspended Coaster[/s:uhm4smtm] (Volcano: The Blast Coaster)
[s:uhm4smtm]
Multi Inversion Coaster[/s:uhm4smtm] (Collosucks)
Totally wrong track layout/design.
LSM Launch Coaster - Blitz (Maverick)
The other likely candidate. A launched lift-hill (or at least a high speed one) could be the key in making this ride short and thrilling. Also capable of launches. Correct track type as seen
here.
Twist and Turn Coaster (Comet Express)
Unlikely, but can't rule it out. Controlled spinning isn't exactly gonna blow the world away, but it is mentioned on their site it can be built outdoors and also with a lift-hill.
Source: IntaminMack
e-Motion Coaster (Tulireki)
Could possibly be the innovative element that will make this ride stand out - tipping cars
[s:uhm4smtm]
Powered Coaster[/s:uhm4smtm] (RMT)
Plans have a lifthill.
[s:uhm4smtm]
YoungSTAR[/s:uhm4smtm] (Pegasus)
Kids coaster.
Wild Mouse (Matterhorn Blitz)
Extremely unlikely, though not impossible. Capacity would be a nightmare and plan has no block-breaks like you usually find on coasters with high numbers of ride cars (Spinball).
[s:uhm4smtm]
Bobsled[/s:uhm4smtm] (Schweizer Bobbahn)
Wrong track type.
[s:uhm4smtm]
Powered Coaster - Flying or Suspended[/s:uhm4smtm]
Has a lifthill, not powered.
Gravity CoasterTrack type correct, but just doesn't feel substantial enough for AT.
This layout does look suspicious similar to SW6's though.
[s:uhm4smtm]
Launch Coasters[/s:uhm4smtm]
Has a lifthill, though could be a similar ride type with lifthill and backwards launch
Source: Mack