Except in this case, it'll be split between two companies with Marvel having 100% control over Avengers while sharing input on Sony, with Sony/Pascal having more input in the standalone movies.

I think the big difference is Feige replace Arad although you KNOW that Amy Pascal and her Sony people aren't going to sit there and get lectured by Feige. Honestly, I wouldn't be stunned if it was more of a PR move as the main thing that they could do to get Spidey's rep back up is to say that Marvel is becoming involved and to get Spidey in the bigger Avengers movies.