Maybe adding them as secret unlockeable characters would be a good idea if they don't break the game as they did when they introduced the secret FF7 characters to Ergheiz, they just break the whole game, they were almost unbeatable :P.
Yeah, Dissidia has a lot of ground to cover and to explore, S-E can go for a trully unique experience with tons of options and content to make every FF fan happy :D
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
