Disney seems to be on a buying spree the last 10 years - but everything they seem to buy to me is business/properties that will be on the decline.
Sports - Disney's ESPN is already in trouble, but they are adding all the Fox RSNs? Unless they see some synergy, I don't see how this is good to add to a faltering division.
FOX Studios - They will get a bunch of rights to older films, but I can't think of a major movie from Fox in years beyond some comic book character films (some that were box office flops). How much of a shelf life does an older movie have once it is old? I know myself, I barely have seen any movies from before I was born.
Cable Channels - FX/FXX/National Geographic - again, more channels with viewership on the decline. Disney already has a stable of channels on the decline and may need to merge them, like Paramount has done with there channels for 2018.
Disney has bought into Star Wars, and Marvel (some of which Fox owned) but again how much shelf life do these properties have to younger generations? The theme parks as well are getting really dated - they have put lots of money upgrading them, but Disneyland Paris and other properties are not doing great - just OK - and again, do kids today care that much about Mickey Mouse? I didn't even care for the Disney characters in the 1970s.
Time will only tell, but I wouldn't invest into Disney stock myself. It seems over hyped by Star Wars fanboys and other fans of their properties, but not really delivering the EBIT and cash flow other companies are these days.