I expect (guess) Meridian to upgrade sooloos server output to 24/192 within this year. AFAIK only ID41 audio endpoint will be able to handle it and only analog outputs will handle 24/192 without downsampling.
But I do not know about the digital outputs, analog is no problem but there is alot of 24/96 legacy out there but they have to start somewhere.. And maybe that's why the latest gen 808.5/818v2/861v8 all got new Speakerlink output cards, maybe they are indeed 24/192 output capable just waiting on the flip of a firmware switch...
My other hypothesis is that DSP7200.2 is the first 24/192 input speaker soon followed by DSP8000.x with a new tweeter..