What's happening with Fallout 4 is exactly what is happening with another series which I love - Spyro.
For those who don't know, Spyro was a 3D cartoony platformer, first developed by Insomniac Games. Their contract was with the (now defunct) publisher Universal Interactive. Spyro had 3 awesome games developed by Insomniac, and it was at a high point in the series.
Unfortunately, Insomniac stated that they would leave Spyro after the third one. Whether they left it because they were bored or the publisher pried it off their hands is unknown. So, what happened afterwards?
There was a fourth Spyro game (Enter the Dragonfly), made by two unknown studios with no track records and a language barrier. It was a copycat of the third game, and critics panned it for being buggy and glitchy.
Instead of trying to fix those issues, the publisher decided that the next game will change its mechanics. It was a good attempt (A Hero's Tail) but it actually didn't get what Spyro was all about.
Then, came its impending doom. Spyro was rebooted twice, leaving the fanbase completely divided. After all that, I lost all hope that Spyro would ever be resurrected and I vowed to make a spiritual successor once I have the means to do so.
I see a similar pattern emerging in Fallout. Someday, a good number of us will have enough of the streamlining and go towards other series, just like most of Spyro's fans did. All because more money requires more style over substance. I wouldn't be surprised if Fallout would be rebooted into an Alien vs Predator setting, if there was more money in it.
I'm trying to be optimistic but lately I just don't know. I've been screwed over before as a fan, and I know how it feels like to have a childhood series ripped apart and put back together only using a few pieces.