I believe that Biff can (and should) be "sacrificed," and Mr. Campbell may well do so. If/when Monica gets the magazine owner's chair, she will probably still have to comply with all the demands of the twisted investors, since getting the chair back will not automatically result in the return of all the documents, accounts, and money Steve stole. And obviously, the other (positive) outcome will likely require more effort and more time, and Monica will have a lot more to do and go through.
So in terms of having humiliating and twisted scenes involving Monica as a "Fashion magazine" model and investors as her "new collective Boss", we still have nothing to lose and there will still be such scenes, but personally I would like to get rid of the vile and annoying Biff face that pissed me off the whole game forever and just let Monica move on.