So it looks like it will indeed be titled Mighty Avengers. Written by Al Ewing and drawn by Greg Land on his first ongoing Avengers book. The team, at least in the promo art, and description – sound pretty cool.
Cool to see they added the Falcon – who is awesome, and Monica Rambeau or Captain Marvel or Photon or whatever they are going to call her. I don’t know who is in the Ronin costume though. It will be interesting to find out. Looks like a pretty solid, yet eclectic team.