Most new model AVR's are 2.0a HDR 10 capable. DV models in 2017 may be up in the air though. If I am replacing Id rather the new one cover both since my display has DV and HDR10.
I think you will like that model. Good eq and the 3000 and 4000 Denons are nice. It is true yours will get DV in 2018, my 2015 however will not. Kinda pissed, the AV7702II is NO different than the 7703, yet the 7703 gets DV... I mean the thing is a $2000+ preamp...
I've always been D&M or Onkyo, loved my old Onkyo 805 tank. Now that I'm using a preamp instead of AVR, quality and room eq are important and a dealer I know with the latest Yammie flagship preamp is very happy. So they will be on the list, as well as a Marantz AV7704 or whatever it is. Im kinda...
I am probably going to upgrade my Preamp once Dolby Vision can be passed through. I am considering making a jump to Yamaha, and it would be my first Yammie product.