As an owner of the XDR, I find it ironic that you're saying "maybe wait to see before putting down thousands of dollars" for this $2K offering when there's no way that a refreshed XDR is going to be less than $6K.
Also as an owner of 2 27" 4K HDR 144Hz monitors that Apple rendered pointless to make the XDR work in the first place ("Wow, Apple's done some magic to make the display bandwidth work!" = "Apple fucked DP 1.4 users post-Catalina and will not admit it". Myself and countless other users saw our Macs that could drive those setups with Catalina be limited to 60Hz HDR, 95Hz SDR with Big Sur on. Hell, we got better performance if we told our displays to downgrade to DP 1.2).
And let's do the math:
- 6016 x 3384
- at 120Hz
- in 10 bit HDR
- 4:4:4 Chroma
works out to be just shy of 80Gbit/s.
Oh... plus if it's like the XDR with three additional ports that we'd assume should be at least 10Gbit/s each, and we're at 120Gbit/s.
Not that the XDR supports HDMI but you'd need at least HDMI 2.2, which isn't on any Mac right now.
And you'd need a full speed TB5 setup, so M4 Pro or Max (which I'll grant if you're laying out $6-7,000 for your display should be the least of your concern).
But saying that the XDR and this are comparable offerings is strange. "Hmm, why would I buy this $2,000 display now, when at some point in the near future Apple might have a better one for only triple the price!"