Bethesda officials have seemingly warned against trusting leaks, or at the very least waiting to see what they have to offer.
Keep in mind the primary leaker, the Kotaku guy, leaked Fallout 4 stuff in like 2013 and was subsequently blacklisted by Bethesda, a rumor (which is what all of this is at this point) going around is that the 'leaks' regarding a lot of the details more or less may be them getting back at this journalist for his previous wrongdoings.
Either way, I'm sure they'll give us something good.