Will they even be able to add all the weird skills to the game? And what even will they actually do?

There are so many strange skill teachers for skills I can barely begin to figure out what exactly they'll do.

Archaeology, Astronomy, Cartography, Diplomacy, Etiquette, Navigation, Pottery, Spycraft, Wilderness?

There are probably more I missed, but it really seems to me like it would be very difficult to implement all of these skills to a level of robustness for them to be in the game. I can't even really imagine their purpose in a game like this for most of them, either, unless it has to do with specific quest lines, which would be great. Skills related specifically to quests would be amazing.

Has anyone heard anything specific about any of these skills, or want to add any speculation or thoughts about any of them?