Keep in mind that the Four Keys have always been a training device for CMs. They are high-level categories that help CMs prioritize their application of park policy as they interact with guests. Someone at Disney seems to think that "Inclusion" was not being adequately addressed within the framework of the Four Keys and warranted being promoted out of the "Courtesy" category and into its own Key. We're not sure exactly why, but we've speculated that either Disney is aware of issues that need to be addressed, that this is a PR move to try to show that Disney is part of the social dialog, or (most likely) some combination of these. Certainly the global social landscape has changed since the 4 Keys were developed in the mid-1960s.
Making Inclusion a Key indicates a substantial change for Disney. From a training perspective, making "Inclusion" a standalone Key allows them to add additional training content to the prioritized categories. This would likely include: sensitivity training, cross-cultural training, empathy training, etc. There wasn't much of this in the (ever-shortening) Traditions Class. Specifically, I would expect:
Also, (as
@Jon81uk has mentioned) training re: implicit bias, cultural sensitivity (beyond just "don't point with one finger"), and even more about interacting with guests who have special needs might be in order.
While Disney has not yet specified where in the priority list "Inclusion" will fall, I expect it to come between ahead of "Courtesy," for all the reasons
@natatomic outlined here:
For many guests, not being referred to as "sir" or "ma'am" could be seen as discourteous. But Inclusion (if it comes ahead of Courtesy) would dictate that CMs address guests in other ways. They may also be further training in regard to things like guest uses of gendered restroom facilities, religious practices, and political expression, as these are increasingly common issues CMs might face.
Keep in mind that this move could be just one part of a broader effort.
"Inclusion" takes on an entirely different dynamic in the Asian parks, where discrimination against ethnic, cultural, and religious minorities is practiced by the government. Disney may well be setting themselves up to push back against this by elevating Inclusion to be one of the Keys.
Finally, the reason this is a bigger deal than just a change to CM training and operations is that Disney sells this training to service-oriented businesses around the world. It's held up as a model for how to train frontline workers and build successful customer service. The 5th Key could very well be intended to address an identified training need broader than just park CMs.