Ike is in, this increases BK's Chances, and we don't know if Marth is returning, but since Ike was shown first... i think he's not returning, so if Marth doesn't return, then BK is in.
Edit:
*looks at Gold_Darkness video*
Those moves where done for Smash...
Edit:
*looks at Gold_Darkness video*
Those moves where done for Smash...