It's going to be OK. Really, it is.
Big companies have budget cuts all the time. They cancel projects all the time. If you went back and looked at the history of the Disney company, you'll find they've cancelled a whole lot of movies and attractions and TV shows and books and merchandise projects over the years. It's just a normal part of doing business.
If you hear about Disney cancelling things, know that this is how they're protecting the company and keeping it in business. They don't want to spend money making a movie that they're not sure people will want to go see. They're cutting back on spending (all companies are) because they want to be careful about not spending too much money when things are tight. That's just smart business.
Don't worry. When we're all ready to start traveling and going to the movies again, Disney will still be there.