Some of these might have been mentioned but oh well:
1.) Arcades
2.) Intamin Box Track
3.) 4-D Coaster
4.) Skycoaster
5.) More Thrill Rides
6.) Inversions while track is facing diagonal
7.) Sit-Down Restaurants
8.) Parking Lot
9.) Ride your own rides (Not in 3D though)
10.) Impulse coaster
11.) Photo sections on all types of rides
12.) Shorter scenarios
13.) More than two options for custom music
14.) In-station queues / Station house (Not just over the track)
15.) Larger maps for big parks such as SFMM and CP
16.) Banked turns on Suspended Coaster
17.) Anti-rollback systems
18.) Banked drops
19.) Medium-size vertical loops
20.) Inclined loops
21.) Larger corkscrew radii
22.) Dive loops
23.) Stand-Up Inverted Coaster
24.) Indoor Shows
25.) Outdoor Shows
26.) Nighttime
27.) Water-park building option
28.) Larger midways
I can't think of anything else. Help anyone?
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Déjà Vu: Thrill seekers plummet from 196-feet, fly head-over-heels at 65 mph over the outside of a vertical loop and a giant 110-foot high boomerang turn with nothing but the sky above their dangling feet.
http://www.geocities.com/totallysfmm