Eh...Eh, interesting concept but not my sorta thing.
HWYR if they released a stages pack, retailing for the same amount as FP2, with the following stages:
Planet Zebes (64)
Sector Z (64)
Icicle Mountain (Melee)
Mute City (Melee)
Mushroom Kingdom (Melee)
Poke Floats (Melee)
Rumble Falls (Brawl)
Pictochat (Brawl)
Rainbow Road (3DS)
Pac-Maze (3DS)
Woolly World (Wii U)
Jungle Hijinks (Wii U - Final Smashes disabled)
Pyrosphere (Wii U - no Ridley)
Orbital Gate Assult (Wii U)
Classic Battlefields (all games)
Classic Final Destinations (all games)
How to Play (64)
Meta Crystal (64)
Yoshi Arena (Melee)
Master Sword Cave (Melee)
Subspace (Brawl)
Bowser's Castle (New)
Gyromite (New)
HWYR if Meta Crystal came back, with a gimmick that turns fighters Metal?