SLOP, Potter (Ministry), New Marvel Ride in IOA, Nintendo (how much/where/when), T2:3D replacement, Toon lagoon replacement, Jurassic World, Mt. Crumpit, Lost Continent, "Site B", Volcano Bay expansion, all are "open rumors". Then there's Hollywood, Japan, and Universal Bejing and the new hotels. There's a lot going on across the entire organization. A lot of the rumors here are just speculated to hell on very minor pieces of information, and some are outright misdirection (particularly obvious as of late in the Nintendo thread)
For Orlando right now..
SLoP - Hollywood as of now seems to be the only one getting it, as Orlando may have Villain-Con instead
Nintendo - The one project to rule them all in the terms of fluctuating changes
T2 - We know something is coming, and that it may be Bourne or Bond (but most likely Bourne)
Potter - New DC replacement and possibly Ministry if that's what they are doing
IOA Projects (Mt. Crumpit, LC/TL replacements, Marvel addition, E.T.C) - Seem to be in dead water as they may be accelerating Site B
Site B - Seems to be accelerating progress, has been indicated that Jurassic World will be attached to it and something Nintendo related
As for Hollywood,
SLoP - Hollywood is seeming like it'll have it at Globe Theater
Super Nintendo World - Confirmed back in the day, sounds like work may begin sometime next year
Other things - Some people have indicated Diagon, some have indicated a JW expansion, it's honestly not that clear at this point in time.
And for world wide,
Osaka - 2018 is a very entertainment filled year, as there will be what seems to be an off year as they work on getting SNW done by sometime around the Olympics (it doesn't have to be before, just saying).
Beijing - Has it's own dedicated team, construction is happening in some form
Singapore - Crickets
Back to Ministry, what makes me curious about it is that this project was somewhat confirmed back when Diagon opened I recall, but nothing much came out of it. Where there's smoke, there is fire, and that I actually see this happening more than SNW at this point for USF. It seems to have at-least some form of prior direction, and if they can get it in shape, they could be able to begin work on it after the summer period, giving them a 1.5 year timeframe for a 2020 debut.