First off... we don't even know if the 3DS could be able to fully run SNES games. Hell, they weren't able to fully run GBA games as evidenced by the ambassadors program. At least, they did run, but certain 3DS features such as Streetpass was not fully functional because of it, which was why GBA games were released on Wii U instead. Mayybe this will change with the New 3DS, even though I really hate the idea of releasing exclusives to another version of the 3DS.