We’ve all been there with a product impulse buy. I’d contact support via your mysteinberg account to see if they will offer a timeline for you.
I would have bought a few myself for our windows machines but timing meant I went for the Apollo’s. Will still likely pick up a couple at the end of the year. Have had so much use out of our mr816csx’s in the prod rooms. Amazing how sound wise they stack up to more expensive converters we have.
I have high expectations for these new units. Have always loved the integration into Cubase/Nuendo