I am totally lost.. Can anyone please summarise what's going on with all the different IP's, parks and ride systems?
A lot, so I'll do my best. I'll only list the ones that are confirmed, have just opened, or are just waiting on a press release. Please feel free to add anything I may have missed.
Magic Kingdom
Tron Coaster - Coming to Tomorrowland. Essentially a duplicate of the ride in Shanghai.
Tomorrowland - Exterior theming updates. Getting rid of most of the exterior elements that were added in the 1990's.
Epcot
Guardians of the Galaxy Coaster - The former Universe of Energy building (RIP) has been gutted and will serve as the queue space, with a couple of preshow rooms and load/unload area. The HUGE building under construction behind it will be where the actual coaster resides. As far as we know, very little theming in the coaster part.
Ratatouille Ride - World Showcase France. Copy of the ride from Paris. Trackless vehicles move between screens with the POV of a mouse being chased through a kitchen.
Mary Poppins Ride - Pretty much confirmed for UK pavilion. The current plan is for a spinner ride, perhaps a carousel.
Wreck-It Ralph Play Area - Already open. (Very) lightly-themed playground area for small children outside of the former Innoventions building.
New Nighttime Show - Illuminations will close at the end of next summer and a new show will open featuring IP and drones.
Animal Kingdom
Up! Bird Show - Already open. It was terrible. They retooled it. It's still terrible.
Hollywood Studios
Mickey and Minnie Runaway Train - In the former Great Movie Ride building. Dark ride featuring mostly real sets and mostly screen-based characters and effects.
Star Wars: Galaxy's Edge - The new Star Wars land, set in a trading outpost during the time period of the new films.
Millenium Falcon Ride - Simulator, kind of like Star Tours but with more interactivity where you're in the Falcon cockpit.
"Alcatraz" (Code Name) - Dark ride where you are escaping from the First Order. Pretty huge show building. Not much known, but should contain both AA figures, screens, and practical scenery.
Toy Story Land - Opened a few months back. No shade. Has a Quick Service location without enough tables where Andy's Mom apparently packed him booze in his lunchbox.
Slinky Dog Dash - Mild coaster with light theming, but considered fairly enjoyable for what it is. More for kids, though adults seem to enjoy it.
Alien Swirling Saucers - Same ride system as the Mater ride in DCA. Similar to a "Whip" ride at carnivals. Consensus is that it's fun to ride with kids, but the ride time is pretty short.
Incredibles Street (can't recall the name) - Formerly Pixar Place. Newly-themed to the city where The Incredibles takes place.
I think that's it for IP-based additions that are being built, have just opened, or are pretty much confirmed to be happening. Like I said, I'm sure I've forgotten something.