I had once assumed that a request of Isaac for smash was the direct equivalent of asking for more official golden sun content. But until the third game in the Returns trilogy is eventually announced, and K rool returns. I don't believe that idea anymore. The cold reality of this situation is that camelot operates off the demands of it's users. And if it see's it's users asking for Isaac in a crossover fighting game, and not for a new RPG, that will naturally and simply not lead to a new RPG. So...in essence if you want a new RPG. Asking for Isaac in smash will not immediately accomplish that. And nintendo fan's will not instantly take interest in the series. In fact, being a xenoblade and shulk supporter during smash 4, I know with first hand experience, than many among those exposed will face Isaac with large resentment. Calling him a "Wasted slot" or "Another worthless anime swordsman" put simply, that goal and ideology was fundamentally flawed from the outset. Our objective now is simply to introduce as many people to the series as possible. And use that support to create significant enough demand for GS4.