Unfortunately we'll never be able to move it due to the route flight Nadina has when she takes off, and lands. It's a fixed route. Maybe this route could be eliminated and she just appear and disappears from the Elven Outpost position, which takes up a huge 4x4 space.. and this could be then be reduced.
I do remember when the Elvens were introduced.. the Outpost hid many objects behind and Nadine was much larger. These were reduced after in size.. but not in space. Nadine had a huge wing-span when she took off.. that reminded me of a Jumbo Jet taking off..