I'm not sure what kind of earth shattering deal NATO could make for Greenland. It belongs to the folks in Greenland and Denmark, not NATO. And what kind of deal, short of a total land grab, could be better than the existing treaty between US and Denmark in place since 1951? Build US defense establishments on Greenland and let Denmark continue looking after Greenlanders' welfare ... and paying for it with Danish currency instead of US dollars. If the Danes were happy with that deal, why not stick with it? Win win for everyone. We all know what this nonsense was about: Donald Trump needing to feed his ego.
Anyway, I'll wait for confirmation from NATO that something has actually changed. At this point just saving the 1951 treaty for US might be an accomplishment. But not one Trump can take credit for. Just watch him try.
The good news - really good news! - is Trump is taking himself out of action re any further "negotiations" for Greenland. Wonder how long that will last. Rubio and Vance won't do anything ... but if they can handle that and keep Trump muzzled in the back seat maybe one of them can get the Peace Prize.