Zwift did not give a time line, you know it may be just one line of code that need to be fixed or a whole library that need to be rewritten. Sorry I wish I could give you more info, also I am a site admin (wayfinder) no a Zwift emploiee. Just a happy Zwifter.
And I have a H3 and it is awesome.
Here is some more info on the H3 when it is not controllable.
From the Saris website.
The H3 in Headless mode (powered on, not paired to any apps) lets you ride with a progressive resistance curve that matches the Fluid2.
