If they do something Sci-Fi for the third gate, I can really only see Metroid; BSG; Star Trek and Halo really do the justification to exist. It makes sense, as those are niche (but relevant enough) IP's that would get people's attention, as those IP's would be the more..easier Sci-Fi IP's to do something for highly themed attractions.
As for what the attractions would be?
Metroid: Interactive Shooting Dark Ride with a Mixture of AA's, Screenz, and practical effects
BSG: A version of the Singapore attraction but with more heavy theming to the upcoming film reboot
Star Trek: Simulator on the level higher than Star Tours (Current version of ST)
Halo: Immersive Dark ride with Animatronic Elites/UNSC Soldiers (Including Master Chief), heavy musion, Hyper-Realistic 3D Visuals from Blur Studios to match the Halo 2 Anniversary edition.
I can't see anything more mature than Halo or BSG in my opinion; and I think those would work out well for an full on Sci-Fi themed land, working with Nintendo, Microsoft Studios, Paramount and their own in-house team's for immersive but thrilling attractions in my opinion. Plus, it'd mix TV/Games/Films rather well, especially with BSG and Star Trek both having major TV and Movie works with Metroid and Halo fitting into the gaming perspective of it.
As for what the attractions would be?
Metroid: Interactive Shooting Dark Ride with a Mixture of AA's, Screenz, and practical effects
BSG: A version of the Singapore attraction but with more heavy theming to the upcoming film reboot
Star Trek: Simulator on the level higher than Star Tours (Current version of ST)
Halo: Immersive Dark ride with Animatronic Elites/UNSC Soldiers (Including Master Chief), heavy musion, Hyper-Realistic 3D Visuals from Blur Studios to match the Halo 2 Anniversary edition.
I can't see anything more mature than Halo or BSG in my opinion; and I think those would work out well for an full on Sci-Fi themed land, working with Nintendo, Microsoft Studios, Paramount and their own in-house team's for immersive but thrilling attractions in my opinion. Plus, it'd mix TV/Games/Films rather well, especially with BSG and Star Trek both having major TV and Movie works with Metroid and Halo fitting into the gaming perspective of it.