EDIT: tagged the wrong person. Sorry.
@Jacob Stimpson There are a few new products from Crestron that are coming.
As you pointed out, Mercury X is a new product that has just started shipping and has some new capabilities, but it has the same microphone/speaker and form factor as the original Mercury product. As Ilya Bukshteyn points out above, this product is in queue with Microsoft certification and Crestron engineering does fully expect that it will pass Microsoft certification, but each partner needs to do their due diligence.
The Mercury Mini that is pointed out above is a new product that is smaller than the Mercury unit that is in market right now and has not yet started shipping, but will need to go through the certification process as well. Once that is released, I do expect that both Crestron and Microsoft would be done with the certification process, but this is a longer lead time than the Mercury X product.