Honorary Dane answering here! 😬
Your question prompted me to visit again the official Danish T-list site
and - surprise! - it has been updated on October 15th, 2021 and we have new entries. Still, the one
on the UNESCO page still hasn't moved. Anyway, moler
landscapes continue to be there, so while we know that e.g. Dragør is more or less going to be de facto
removed, all klint
s are safer (and worthier, if you ask me).
In general I get the impression that Denmark overall is not moving too much, and that for now they are just going all-in with the ring fortresses. For the successive year(s) I would strongly bet on the workers' assembly halls, so moler
will have to wait in any case... it will surely preceed the dormant Amalienborg, but probably Møns klint (whenever they will officially add it) is more flashy. So not before 2025? I'm sorry don't really have informed updates.
On a more personal note, I would anyway recommend a visit to the place, especially the islands of Mors and Fur. But take into account that it is a sensible stretch from Aarhus (counting that you also have to go back) on secondary roads, and to get there and roam on the countryside, the ferries and take a look at the museum and the quarries takes its time: at the very least a full, long day to appreciate it (but that might be me).
I still intend to write a review about it (and the remaining Danish sites), but the usual mix of extremely busy periods and procrastination tendencies is holding me... :-/