After watching numerous YouTube reviews of both of the Node 2i and the newer "Node", it seems that any upgrade would be slight. They all tout that the new Node has eARC, is built more modular (probably makes it cheaper to manufacture and service), has a slightly better power supply, and a different DAC implementation.
I would think that your Chord Qutest DAC is a step up from either one in quality.
The main difference is the processor in the newer Node is faster, for a snappier response when you are controlling it.
If you are happy with your Node 2 I don't think you'd gain much from the new Node - unless eARC is something you want - especially since you have the Chord Qutest DAC in the chain.
It isn't like they are touting the new Node as having super better jitter specs or anything, so as a source, your Node 2 is likely just as fine and capable for feeding an external DAC.
I'm looking to buy a Node, use it for a while, but save up for a better external DAC like the Denafrips Ares II or maybe even your solution, the Chord Qutest.
Bluesound Node 2 vs. Node (2021)
I am currently enjoying an older Node 2 and wondering if I my sound quality might benefit from an upgrade to the new, 3rd generation, Node (2021). My system: Network > Node 2 (via Cat5e) > Chord Qutest DAC (via Coaxial) > Hegel H190 (via analog) > Magnepan 1.7i. I'm only using the Node's WiFi for control via the Blue OS app on a tablet.
Thoughts?