Ryu is pretty exciting, but seriously? Another Fire Emblem character?
If they are taking all these company mascots, one can hope Scorpion will make it in. But probably not, because he isn't from a Japanese developer.
I really was wanting a Mortal Kombat character in SSB someday. Ryu doesn't leave off too much hope.
I'm not sure why you would think an MK character ever had a chance to join the SSB roster. Capcom already has Mega Man on there, so with them having a foot inside already it wasn't surprising to see Ryu pop up as well, especially since Street Fighter is in the works. Also, Capcom seems to want their hands on that Nintendo money...