Think there will be a new mount in expansion?

Anyone have thoughts or speculations as to whether they'd add some sort of other mount that is only usable in Northrend? I don't really forsee any type of mount that they'd have to add if they can just change the outland-only flyers into northrend as well. Although I really think that they'd add some retarded mount which is the only flyer you can use in northrend that is "unhindered by the cold" unlike the swift wyverns in outlands. Also I feel like blizzard will make it cost like 10,000 gold maybe even more since the epic mount to flying epic mount was a 4200 gold increase. Really this post is just me rambling and complaining that blizzard will make level 80s farm up another 10,000,000 gold to get a flying mount that is only useable in northrend instead of just letting us use our lvl 70 epic flyers.