The second question is, "What will happen to the animals if SeaWorld collapses?" First, SeaWorld has a legal responsibility to find a solution. They cannot legally abandon the animals. They cannot put the animals down without long and costly court battles.
There is, however, a way that SeaWorld and other facilities can actually survive, that investors can recoup their investment, employees can retain their jobs, and the animals can be given a new lease on life.
And if I were the CEO of SeaWorld, this is the plan I would follow.
First I would find large bays or fjords where the openings could be netted off. The animals could then be placed in these large enclosures. Food could be provided by a trust fund set up by SeaWorld and trainers hired to teach the orcas and dolphins how to return to freedom in the ocean. Thanks to scientists like Dr. John Ford, we can match captive orcas with their pods based on the dialects within their language. People could still come to see the animals in these enclosures, although without the silly tricks. This facility could also serve as a hospital and rehabilitation center for sick and wounded animals.