I kept seeing a few suggestions here and there that Bethesda was showing something in private at E3 2013. A lot of people speculated it was a new Fallout
title but nothing has been confirmed.
Well, nothing has been confirmed nor announced still but there are even more rumors today. A post made to Bubblews
(it's ok, I've never heard of it either) says that Fallout 4
was indeed shown behind closed doors at E3.
Oddly enough, a few specific "details"