That promo felt a lot to me like the narrative they will be trying to push is that the celebration will be what YOU make of it... Family, friends, excitement, "classic rides" are what will make it a magical time.... In other words, steering expectations away from the idea that magic is going to come from new rides or entertainment options, and instead be about celebrating with the people you love.
Not a criticism, just an observation as I'm sure people have expectations on what they think it should look like based on what was said about what the 50th was going to look like before covid changed all that.