Yeah, this is pure wishful thinking.
Obviously, Wii U is not exactly in an enviable position right now. It's certainly in a much deeper hole than 3DS was at its low point, largely due to the dearth of third-party support.
But at the end of the day, it still has 3D Mario, Mario Kart, Zelda, and SSB coming, among others, all of which are guaranteed to have some kind of large, positive impact on hardware sales (if not necessarily enough to save the system from GC or GC-plus sales).
By contrast, as I noted in today's MC thread, Vita literally has not one notable exclusive announced for the remainder of 2013 in Japan once Soul Sacrifice and ToHR launch tomorrow. The closest thing to an exception is Valhalla Knights 3, a fact which speaks for itself.