Ok, currently the setup is going like this:

Denon x4500h
ADA 1000 3 channel
V160 HP
M5HP x2
Big SVS sub
QS8's x4 for sides & rears

I'm considering adding 2 pairs of ceiling M3's for Atmos. The ADA will power the fronts and center leaving the surrounds to the Denon. Can the Denon also handle the ceiling speakers too? What about another set of sides as well? Since we frequently watch movies in the dining areas (behind the normal living room seating) I though an extra set of sides would make the experience better.

Was also considering replacing the QS8's with on wall M3's to match. I currently only have one pair of the QS8's (2nd pair on order).

Denon x4500h
ADA-1000 x3
VP160HP
M5HP x2
M3OW x2 sides
M2OW x2 rears
M3 In-Ceiling x4