This has been a growing issue ever since documentaries like Blackfish came out. Awareness of how these particular creatures are treated has led a lot of existing parks to either close down or pivot to other attractions and conservation efforts.

Even in the US, Seaworld has decided to phase out whales and try to push other attractions, due to shifts in public opinion. I have a feeling other US aquariums, like Chicago, will likely go the same route and not replace or breed their current dolphin/whales populations.