Personally, I dont see it coming.
Sure, F4 is a big disappointment for us in term of writings.
But damn, it's several years already. And Fallout 3 does create a good precedent: F3 writings are noway the same as F2 or FNV but at least it's serviceable, and can evoke great feeling. If they can do another game's writing with same level and success of F3 I would be satisfied.
So I had a slight hope that they can create a better game than expected.
...
..
.
Sure, it's better than expected. Compared to Andromeda, that is.