Semi-related:
Here is Katsuhiro Harada's stance on paid DLC. In terms of Smash Bros., it's most likely not up to him. If say Satoru Iwata insists, Sakurai is probably the only one who could step in and say, "No DLC" and get away with it. However, since I never have and don't want to pay for DLC, it's still nice to hear this from someone on the development side of gaming.
I'm on the fence over whether i think these new games will feature paid DLC. Along with Mario Kart, it's the perfect Nintendo IP to include paid DLC. At the same time, it's not really Nintendo's style. Then again, Fire Emblem on 3DS is Nintendo's first foray into the realm of paid DLC so who knows what will happen on that front?
I'm not opposed to DLC existing even if I don't particularly like the idea of it. If Smash Bros. had paid DLC, I might consider it depending on what it is. I think David Cox of MercurySteam said Reverie and Resurrection in Lords of Shadow were rushed (not surprised) and kind of forced on them by management (also not surprised) so if they are to do DLC again, they would want it to be planned from the beginning and be far more substantial. That said, I can only hope for the same in Smash Bros. if Nintendo goes that route. At the same time, they are making 2 separate games. What can they really add DLC-wise that could be considered worthwhile and not split the audience? I would strongly prefer not to pay for new stages and characters, but really, what else is there?
(I posted this for discussion's sake so I hope we can keep this friendly.)