INCOMING RANT:
IoA does not need more indoor rides. I don't know why everyone wants to make this argument.
Yes, indoor rides can be great if they're used correctly. USF is an example of a park with way too many indoor rides. Outdoor rides create synergy, and help me feel like I'm in an actual fantasy world. USF has two rides that give me the slightest hint of that feeling: HRRR and that Simpsons flat ride I always forget the name of.
IoA is the perfect example of a park done right. There's flat rides, but they're spread out and unique. Forbidden Journey is one of the best rides you'll ever experience, Kong has immersive theming and a great-looking animatronic, Spider-Man and CitH are classic dark rides adored by all. And they are separated from each other by world-class coasters, water rides, and beautiful environments.
Jurassic Park is the prime place to put a coaster, and there's two dark rides bordering the land. There doesn't need to be three in one area. Other areas don't need one, but they would fit perfectly there. LC, I would be fine with having an indoor attraction there. You couldn't put anything else in that spot. Heck, I would be fine with a dark ride in Toon Lagoon, as that area, unlike JP, is extremely bare.
I really hope that the new park doesn't have an extreme overload of indoor attractions. That would be a waste of space and time. I hate to go off topic, but the new park should be half-and-half. Half indoor, half outdoor, or a mix between the two (Yoshi, Potter coaster, Seuss Trolley).