I agree, @raylock1, that Phonak will not make the Sphere available at Costco. BUT, I do think that they will be back at Costco and not with a Unitron or a Hansaton. In fact they will be back as a Phonak IMO, which will give them a tremendous marketing advantage over their competitors who are rebranding their products under a different name.
Demant tried to gain an advantage by licensing the highly recognizable Philips brand to gain an advantage over less recognizable brand names like Rexton and Jabra. But I think that Phonak will go one better by giving their product the full recognition of a Big 6 hearing aid brand. What I expect Phonak to do, however, is to release the defeatured version of the Infinio, i.e. without Sphere.
Why else is Phonak even offering the Infinio without Sphere? It’s the most complicated and confusing roll out of a new product I’ve seen - 4 different technology levels of the Infinio R (90, 70, 50, 30) AND 2 different technology levels of the Infinio Sphere (90, 70). All introduced at the same time! There must be a reason for this and the minimal price difference suggests that it’s not money. There must be another shoe to drop. And that will likely be Costco. Which means that what they’re pursuing with the convoluted structuring is volume. Money in another guise.