Thrilled to hear this. May start picking up the Avengers regularly!
For me, what this represents is an opportunity for a diversification of voice, more than anything. I don't care about the makeup of the individual teams, I just want to see writers putting together teams they think are pregnant with dramatic potential.
The most lamentable aspect of Bendis' tenure on the Avengers wasn't that I didn't like Bendis' Avengers -- it was that Bendis dominated the line, often writing multiple Avengers books while simultaneously running the Avengers-centric event that was happening at the time. It was that he got to set the direction for the other books, as well. It was that, since I didn't like Bendis' Avengers, I didn't get to like the Avengers PERIOD.
With Bendis leaving, his strangehold will be gone. I do believe strongly that a franchise tends to prosper when there is an obvious Marquee book that sets a status quo here and there, but when it does so unobtrustively. Examples at DC would be, say, Morrison's tenure on Batman...his story was his story, but there were ripples that affected the other books, and those books were self contained despite those ripples. He shook up their status quo in a way that made sense within the context of their status quo. Counterpointedly, the Green Lantern books with Johns at the helm of the main title are little more than fill in the gap and support titles. That's a bad way of running things.
Anyway, so I want to see the same number of Avengers books. Avengers Academy, Secret Avengers, New Avengers, Avengers, Avengers Assemble...fine. But make it such that each of those books has a different writer who is trying to do a different thing. Keep Academy and Secret with Gage and Remender. Make "New" an edgier book, give it to someone like Spencer or Hickman. Make "Avengers" for the more traditional fans, and give it to Jeff Parker. And give "Assemble" to Fraction, since he loves to do real worldly movie type stuff.