Spencer's good on his word. He's leaked and announced SE titles (and DLC) accurately before. More than SE, just in general. I think his claim that it might be "surprising" is what's doubtful.
I think many people will be disappointed; they're probably thinking it's a big title. I see a lot of Type-0 Vita being thrown around, for example. But that wouldn't be very surprising now, would it? I'd curb my expectations.
I'd love to be proven wrong, of course.