Board Thread:Lore Discussion/@comment-25531876-20141229215535/@comment-26516965-20150115132608

They already launched attacks on the topside. You find a carriage attacked by them. Also, noone knows the Falmer as well as Arch-Curate Vyrthur does. And he claims the falmer are gaining the intelligence again. They also launched attacks on the temple of Auri-El and the protectors of the temple themselves had problems fighting them off. There is simply some in-game evidence they're pretty smart now.