Got a source on that?
Considering they made L-canceling, left in Wavedashing, and DACUS was also an intentional AT like L-canceling, I doubt they wouldn't replace DACUS with somethin' if they did take it out (they really should... bloody Snake).
Which brings up a side point; Sakurai explicitly has always described Smash Bros. as casual, and not some advanced tech pro-gamer whorefest of a fighter, and that's how he wants it. Yet every game has had intentional ATs... I'm curious as to why that is. Most casual gamers/kids as a whole never had a ****in' clue 'bout any ATs, nor would they care to use 'em. I'm not saying it's stupid that a supposedly-casual fighting series has ATs, but it's certainly most curious.
Umm I've read the article in a few places. You can also see it on Wikipedia, but if you search around you'll find it on quite a few sites. Since it's a translation, though, you can never be too sure. I think what he said is at least correct because people love to prove others wrong, and if that wasn't actually something that was said, the article would be shot down in an instant.
Also, the game's meant to be casual, but not too casual, so competitive and casual gamers alike can enjoy the game. If it was as simple as Dissidia it wouldn't be half as successful as it is right now.