A split like this actually occurred with Bungie and Microsoft and Bungie started work on Destiny. Trouble is they formed an agreement with Activision. In the year leading up to the release of the Destiny, the original concept and passion for the game changed a lot. The lead writer quit (went to Microsoft). The lead musician was terminated with prejudice (he took Bungie to court and won). But I really doubt that Bungie could have completed the game without additional monetary support (Activision reportedly coughed up with half a billion over the life of the game).
If you look into EA and other corporate buyouts, they are primarily buying the brand name and little else. They just gut the carcass and take the prime parts and sell off what they can. i.e. example: Atari. the name has been bought and sold frequently. Like many 'brand names,' the name lives on but the original company has long since died. I've often said that EA is where gaming companies go to die. The Origin name lives on as a PC application.
However, we can't backup in time before the EA buyout and pretend it never happened. It seems the RPG style of game that BioWare made famous hasn't died at all. The old Baldur's Gate series was revived by a former BioWare employee. There are quite a few games out or coming out that are in the same vein as Baldur's Gate; even the D & D people (Wizards of the Coast) are bringing out a isometric based game this year (Sword Coast Legends). That will be competing with Divinity: Original Sin, Transistor, Pillars of Eternity. You also have Witcher 3, a digital download without DRM that I'm more than willing to support.
So in spite of EA corporate manipulations, the old style of RPGs live on; there's just way too many passionate and creative people out there who want to make games. And many of them are BioWare employees–they just don't make policy. And as long as people buy and play any game, the creative process will continue.