#FE I feel is a June game and even if it means lower sales, I could see Nintendo being cheap and saying "We need Wii U games. Atlus, forget the English VA's, just have English Sub-Titles and call it a day". Not the best move, but one I could see Nintendo doing; they have very little coming out for the Wii U next year (with only Star Fox, this, Zelda U and maybe Twilight Princess HD to help them out).
Again, Atlus USA isn't responsible for this game's localization or marketing. I'm kind of confused why people think this (it's kind of like continuing to call it SMTxFE, really). You won't see Genei Ibun Roku #FE on Atlus USA's website, YouTube page, through press releases or any social media because that's not their game, it's Nintendo's. Same goes for that game's localization, going by the Treehouse.
But yeah, there's absolutely 0% this comes out without an English dub. It's simply not happening. I also think June is too early; we don't even have an official English name for this game yet and I think we would have seen a "Spring 2016" window in Nintendo's latest lineup release if it was going to be June.