Like I said, I put as a borderline cut mostly because while fire emblem is having it quite nice right now, I kinda see Ike as more the lead in the newer titles.
Ike appeared in 2 games for the Gamecube and one for the Wii. IMO he is likely to get cut because the new Fire Emblem for 3DS has new characters. Marth should be safe for being the original lord.
I hope FE gets 3 characters this time, Marth and 2 lords from FE Awakening.