I would be amazed if it went to trial.You have to keep in mind that provable damages are an essential element to both of these torts. It's rarely worth suing people if there's no money that's been lost. The trade secrets tort exists primarily to limit unfair competition by rival businesses, not to keep secrets from the public.
With some TV shows, an unknown outcome may be a big part of what drives the ratings. That's true of Survivor. There are probably going to be fewer people who watch if the boot list is out before it premieres, but OTOH the show has enough diehard fans that watch to see the spoilers materialize. But how do you quantify how many ratings were lost because a boot was known? It's tough.
Now in the case of players, and crew, they are under contract, and their contracts can be written to spell out the damages in case of a breach. (Also called liquidated damages.)
So I would think that the person DBJ wants to sue is the person under contract, and not someone who posts spoilers. To get to the unknown person under contract, they sue the spoiler, which allows them to conduct discovery, which gives them access to emails and other communications that identify the leak. The spoiler is not the ultimate object of the litigation, but a means to identifying leaks.