You left out "They should reuse content parts about the same as Fallout 3."
Part of the retro 50 style in Fallout is that most of America leaving out any historical structures looked pretty much the same.
So one suburb looks like another.
One office cube farm looks like pretty much like any other.
F3 did a good job on reuse.
Bioware should have known better on DA2.
I think with a larger team for F4 and the settlement building features they are going to be reusing less content in F4.
Or at least reusing it in many different ways.
Just look at the variety of settlements in the E3 demo.
I hear some complaints about stuff in F4 looking like stuff in F3 (Hacking, Lockpicking, and so on), and I'm thinking this is a sequel.
The in game computer screens should look the same.
F4 is happening a couple of months after F3 and is located only 4 hundred miles apart.