Pardon? Duckburg? Comics?
DLP’s marketing here in the UK is all aimed at families with pre-school or pre-teen children.
Marvel, Princesses, Mickey and particularly Minnie. The classic animated movies or of course MCU.
There just isn’t a Disney adult marketing drive. Should there be? I don’t know.
But in general, I’d say most of my friends have either never been to a Disney park, or are more “oh yeah, we went to Disneyland Paris / Orlando when the kids were younger, glad that phase passed quickly”. There just isn’t a nostalgia for Disney.
To my mind, a new land like Pandora would be trying to appeal to parents to have a reason to take the kids back.
Are things different in France, Germany, Switzerland etc? Is there a big adult Disney fan base? I don’t really see one in the UK. In my experience people plan vacations to Orlando for the variety of theme parks and the weather. Those with older kids want thrill rides and shopping.