They may not cancel just because of the British decision, but they may cancel because of the effect of that decision may have on their finances. That decision has already had a dramatic effect on the rest of the worlds economies. That may result in people making cutbacks that eventually affects Disney.
Everything they sign has to be paid for. Ad revenues need to be significant enough to cover those costs. So ratings and subscriptions need to be consistently high enough to be profitable.
Saw a report on the news last night that showed an alligator climbing OVER a chain link fence. All Disney can do is the best they can do. Pretty much all of Florida is gator country and they will do what they want to do in spite of the best defense efforts. People just ned to be aware of the potential dangers.
Alligators have been in Florida for eons. That's their natural habitat. Disney has been in Florida for decades and, with hundreds of millions of guests, this is the first fatality from them. This incident will have no effect other stock.
Shanghai DL opens in a couple of days. It has nothing at all to do with Tokyo Disney Resort, As for HKDL, that park will probably remain with little change. The visitors for each park are different demographics and locations. Whether Shanghai DL and HL DL survive in the long term is uncertain and depends on whether the Chinese find Disney's efforts worth the cost compared to other local entertainment offerings as well as the increased significant competition from other major entertainment companies.
If you are uncertain about Rogue 1 based on SWTSA, then I don't have a very good feeling about it. SWTSA, while created with latest technology, was a poor remake of the original Star Wars. Too many variations will cause people to lose interest (I have).
Disney's heritage is not Chinese. Wanda parks are focusing on the Chinese culture. Disney's park will be a premium offering that most Chinese won't be able to take advantage of. So the Wanda parks will probably be more of an entertainment staple for most Chinese while Disney will be limited.
Disney has been facing more and more competition, including other major theme park groups. Their Hong Kong park has not been as successful as they would like, with some of the smaller regional parks in the area actually improving while HKDL languished.
Shanghai Disneyland will certainly be s success - to a point. Whether it will be as significant a success that Disney needs, especially in the face with new and more dedicated competition, is uncertain at this point.