In the extreme short term, yes things will be delayed. But Disney is gonna need new attractions to drive tourism to their parks in the next couple years.
I bet we see some work done in Tomorrowland around 2025.
Maybe. They still gotta finish MMRR and Avengers Campus Phase 2 (Avengers E-ticket). There's also the Eastern Gateway / Hollywood Backlot revision, as well as Fantasyland revision, and adding more to Galaxy's Edge.
My guess is that after MMRR and Avengers E-ticket are completed they'll go in this order:
1. Eastern Gateway / Hollywood Backlot. They'll want to tackle this first as it deals with the infrastructure of how people get to the parks, as well as solving the foot traffic issues on Harbor. That intersection needs to become much safer for pedestrians, and the best way to do it is to eliminate all the intersecting outright.
2. Fantasyland / Tomorrowland. I'm not sure which one they'll tackle first, but it's unlikely they'll be able to do it all at once. It may even need to be in three phases: 1. Fantasyland Theater 2. Motorboat Cruise/Autopia/Submarines area 3. Tomorrowland outside of Submarines/Autopia.
One caveat about the two projects above is that they both require some rerouting of the monorail, though Eastern Gateway is far less work. It's possible they include some phase of the Fantasyland/Tomorrowland overhaul in tandem with Eastern Gateway as far as the Monorail rerouting and Autopia area Peoplemover track removal is concerned.
3. Galaxy's Edge expansion. This would also likely be in phases, with the dine-in restaurant expansion coming in first, possibly as its own smaller project. Also, as this is all removal of further backstage to perhaps add one more ride, it's out of the way of the actual guest area. so budget aside they can kinda do it whenever they desire. But it makes sense to do a 3rd ride after both Fantasyland and Tomorrowland are finished if only to keep guest satisfaction higher for the park overall before starting on another backstage removal for guest area ride expansion.
We'll see what the timelines end up being for these over the next decade.