The new mounts are in varying stages "in the works both on paper and in development", but Aventurine gave fans a look at the first to arrive in Darkfall, the Tribeland Bear. The Blue Tail Runner is also on the way, and while its appearance will remain a secret for now, we have a few more details: "This agile mount will be the first of a new generation of mounts. It will be faster than the normal mounts but with less hitpoints."
The new mounts will be part of a more specialized collection, with a wide range of abilities that give them certain strengths in different situations. Check out the Darkfall forums for all the discussion on this addition to the game!