Without Breaking the NDA I cant really say much about the matter myself, Though if you do watch the video on Rifts website you will see a guy sitting on a wolf looking thing with horns at about 40 seconds into the video. NPC or Player, its hard to say. Later in the Video they show players on Horseback. (No big shock there though)
As to flying mounts, personally I hope they do not put them in, or at least not for a long time. Flying mounts take away from the game imo, No longer do we get to travel and see the landscapes, find neat little hidden spots in the game, or even see that one spot that really makes you say.. "wow, look at that, I gotta show my friends" instead, flying mounts make us fly as high as possible, hit auto run and go afk for the majority of our trip. Sure some will counter that there are more places we can see by flying, but lets face it few people do that, I guess to me exploration and seeing and interacting with the game world is part of the fun for me.
Edited, Dec 15th 2010 12:12am by Mistre