I have to admit, recapturing the magic of the original Fallout games and staying true to the series more than a decade after their release is a monumental task. I don't think Bethesda quite succeeded, though I do believe they did as well as could be expected of them, and certainly better than
I expected. I still prefer the original games in many ways... I've replayed the originals many times over the years (played them both again a few months ago), but I've had no desire to replay Fallout 3 since finishing one play-through, nor to bother with the DLCs. Perhaps that will change in the future.
Also, the plastic clock I got with the Survival Edition broke two days after I got it, just like everyone else's. Outsourcing to Asia for the win!
Anyway, what would absolutely ensure that I don't bother with Fallout 4 is if the Enclave is part of the game again
at all (aside from lore cameos), or if the Brotherhood of Steel is a
major story element. Bottom line, if either of things are part of the next Fallout game, I will wash my hands of the series for good. Bethesda needs to break new ground and give us something original, exciting and
mysterious within the Fallout universe, and plus, I'm tired of seeing the Brotherhood's lore butchered by Bethesda to suit their purposes.
The first Fallout had the Master's Army and the Brotherhood of Steel, the second had the Enclave and... well, basically just the Chosen One, but with a lot more to do in between, and only small cameos for remnants of the Master's Army and the Brotherhood of Steel.
Mystery is important; it's part of the magic of the series. I don't want to walk out of the vault knowing pretty much what to expect for the rest of the game. It was excusable to re-use the Enclave and Brotherhood in Fallout 3, since it's a Fallout for a new generation of gamers, but I won't tolerate it as a trend where, in every new Fallout game, we choose our favorite football team: "GO ENCLAVE!" "RA RA BROTHERHOOD!"