I run OpenWRT in a few locations. One of them is VM on a x86_64 fanless (SuperMicro) server hypervisor. The other is a VM on a x86_64 fanless CompuLab FitPC hypervisor.
Along with OpenWRT, those systems also run a PiHole VM (https://pi-hole.net/), and other VMs such as FreePBX (https://www.freepbx.org/).
I am interested in this, even if it is based on legacy ISA ARM, as I would rather a hacker-friendly router designed for OpenWRT.
This is relative to some consumer device off the shelf which is hostile to OpenWRT, needing trickery to just install. That is what I had in my previous location, and I would prefer this instead.
That said, the VisionFive 2 is available. There's some people on the Openwrt forums working on trying to get OpenWRT to work; might not be a bad idea to reach out to them and see how far they've gotten.
The other half (wireless) could be solved by using the PCIe lanes. To do it well at scale, we'd need a new board designed for the purpose.
The Pi4A guys meant to release such a router device, but seem to have elected to do other devices instead. Shrug.
It is very possible to make a great modern implementation of a bad ISA full of legacy cruft; Zen4 is a good example of that. Intel get a participation award for trying.
P.S. you don’t get to start calling things “legacy” just because you would prefer something else. ARM is clearly at a scale right now where that’s the sweet spot for cost/performance/availability right now.