It might not be fully Whdeonized...but sometimes just 1 or 2 scenes can make a difference in a movie..or maybe just lodge a feeling in there. For example, there are two scenes that, if deleted, wouldn't have changed Avengers one bit (well, one tiny thing)...but they are some of the most memorable and left me feeling "Whedon REALLY understands what it means to bring a comic book to life" Those are of course the 2 Hulk vs. Asgardian scenes (the sudden punch to Thor and the slapping around of Loki)
On the negative side... The Last Samurai was actually a good movie...had they ended it with Tom Cruise being the last Samurai for 3 minutes (i.e. dying on the battlefield), it would have been a great movie. But those last 3 minutes where it was revealed he was in fact alive -- that just ruined it. And that could have been a last minutes edit.
Whedon can't make Justice League into Avengers, but I hope he drops something that will make us believe that the DC Film Universe really DOES understand what we like about DC heroes.
I am very sorry for the Snyders' loss, and they are doing the right thing as a parent.
It's unfortunate they had to go public... but when one is in charge of a multimillion dollar project that could affect billions of dollars (from merchandising to future films), it's hard to avoid. Shutting down production 00 without this context -- would be worrisome. So knowing the truth makes the situation understandable and not worrisome...and the Snyders should be given all the privacy they need right now.
I am risking being insensitive...after the 2 week break, do we know if they attempted to finish the movie, and just came to the conclusion they couldn't, or were they at that point just setting up the anticipated transition?