Still considering that Disneyland isn’t asking for any additional space in the city, simply the ability to redevelop what they already have, it seems like a forgone conclusion this will all go forward.
Especially since Disney apparently isn’t looking for any financial assistance, which was what killed the last new Disneyland project.
Don’t expect any of this to happen too quickly, Disney says it will present its plans to the Anaheim City Council by 2023, and that means that even after approval any of this new stuff will come several years after that, so don’t expect to see any of it until the latter half of this decade at the earliest.