Disney has not officially said anything at all. Nada! The only thing we have to go on is the Orange County task force, which did not make any recommendations so far concerning guests wearing masks. Universal has hinted they would require it for their staff, but has not said whether it will be required for guests. Disney has not even hinted anything. Iger suggested temperature checks on everyone several weeks ago. But that was more him being speculative on what the parks could look like on reopening not necessarily something they were actually looking at doing.
Putting up what guidelines a theme park in other states are doing is meaningless. It is not automatically going to be adopted by Disney. Practically nothing during this crisis has been standardized nationally. Practically every decision is being left up to the state and local governments. Some states have mandatory mask orders that the theme parks in those states will have to follow. Florida does not have a mandatory mask order outside of 3 counties in Miami area. California is going to have guidelines that
Disneyland is going to have to follow. WDW is going to have different guidelines based on Florida's task force and government leaders. So it's likely DL and WDW won't even have the same rules! All these states have different guidelines. So what a theme park decides to do in San Diego, California is going to have practically no impact on what Disney World does in Orlando, Florida. Florida has its own leaders that will make their own decisions.