My baseless opinion is that cutting material or adding back content or returning to Eden, or seeking Nirvana, is going to result in......just about the same end result in terms of viewership.
Making changes to the ceremony and or to the broadcast and expecting it to significantly impact...
I wouldn't be surprised if after the current TV contract expires -- which was backward looking to when the Oscars were the most watched non sport event of most years -- the next contract is less about placing that high in the ratings, and more about selling ads.....which a longer ceremony might...