Nothing will save it, but it was always probably going to outsell the Wii U anyway.
Nintendo has like three big console exclusives in Japan -- 2D Mario, Mario Kart, and Smash Brothers. And they've basically used two of them up already with the third one coming in December, but that will likely (in Japan) be overshadowed by the 3DS version + New 3DS launch.
Sony already had FFXV and Kingdom Hearts 3 (which mind you are bigger than anything they announced today), but throw in MGSV, Bloodbourne, Persona 5 (cross gen), Bio Hazard, and Dragon Quest Heroes (cross gen) and it's likely they'll beat the Wii U in the long run.
Not that it'll matter much, I don't think either console is sniffing even PS3 level sales this gen, Vita will outsell both.
I think in Japan amiibo will be a hit, but it will be driven more by the 3DS, especailly since it launches with the New 3DS which makes owning a Wii U for that reason moot.
Waifu sims on Morpheus is Sony's X factor, guess we'll see on that.
