Out of all of my very humble HT components, somehow I feel my 7 year old AVR is the last item I expect to replace any time soon (as long it is fully functional)
I do feel a bit envy for Dynamic EQ for I constantly hear ADTG praises it, but otherwise, my 7 year old Onkyo TX-SR805 still holds it's own in my aspects which I care about.
Stuff like network management, streaming, atmos, 3d, wifi and bt - I easily live without and as for power, mine still packs a serious punch at 7x125wpc and weights like small tank about 50lbs. Maybe Dolby certification are indeed silly, but I do hope there is a good reason that is it was guaranteed to provide 85db sound level with 20db headroom in 3000 sqft rooms and distance of 12ft from screen.
If I had a bit more modern avr, which supported Dynamic EQ I would probably be even less inclined to replace it, if such is even possible.
That said, if the inevitable happens, the most likely candidate for replacement would be Denon
Onkyo was the value rebel, which I don't feel that they are any more, while Denon is very strong in this area in my option