What will Godzilla eat?

I haven't seen anything in regards to this. Since he is amphibious I would assume after he wakes up from his hibernation he may grab a whale or two. He has sharp teeth so if I were to guess I would say he is a carnivore. I don't think they will touch on this in the movie. Maybe showing a whale torn to shreds on a beach would be cool though. 

@Jmtrude, yuour idea of showing a whale torn to shreds reminds me of "Cloverfield" when some whales are found torn apart.

Probably just radiation, just like the Toho movies.

He will eat everything so hide yo wife and hide yo kids

Hehehe. He can eat pretty much whatever he wants given his size.

But as for the actual films, I don't think it actually featured Godzilla eating anything at all. Sure, he munched a rail car in the original and in Godzilla 1985, but don't think he actually ate bit.

He did "feed" on radiation when he attacked the nuclear power plants in some of the films. And even that he didn't actually put anything in his mouth, he just grabs a nuclear reactor and let the radiation be “absorbed" into him (indicated by his glowing spikes).