I would take out Fat Princess and Heihachi. For Cloud and Raiden.
Fat Princess and Heihachi both feel like wasted slots to me. Nobody asked for Fat Princess and as far as Heihachi, it should have been Jin or someone else more popular like Hwoarang or Kazuya.
Cloud which i'm still hoping gets in is ridiculously iconic and Raiden is freakin awesome, but I feel we'd get Snake over him (Especially since that twitter voice actor thing)
Heihachi is the most recognizable from Tekken because he's been in all the games, and is the big bad in all the games.
People who say fat princess was a waste of spot, not true that game was one of the most downloaded psn games, and very popular at its time, though i wont use her and which the grim class from fp was there instead im fine. I hop theres a fat princess stage where both sides are fighting in the background though! As toro not a waste he's the face of playstation japan that says it all.