two different cameras with two different intents. I own both of those as well. Perhaps, like you, I also bought the Eos R for its video feature set (And to replace my aging and moisture damaged 5D3) If all the Dx3 will be (so far as video) is an Eos R in a bigger box, then keep the R. I dunno what sort of video work you do, but mounting and balancing the DX2 on a gimbal (i have the Ronin M) is a PAIN In the butt compared to the R. Even if I were to upgrade to the DX3 from my DX2, I’d still keep the R. Might wanna think on it too.
All that said, There’s a lot of sizzle here in this release with no steak yet (so far as more detailed specifics go). If the sensor goes to 24MP and some sharp improvements in the higher ISOs, then it may be worth the plunge.
otherwise this will be a great upgrade to the original 1DX users out there.
Maybe Neuro finally upgrades?