I'd guess there's probably a market for it with the AppleOne bundles, but again it all depends how much money they chuck at it & how long they decide to support it for like all other great ideas.
What's the numbers/uptake on fitness machines in gyms that the apple watch / iPhone synced with? Don't think that's been mentioned again since being introduced, is it considered a success, does it fit in with Fitness+ or has that been canned?
Or maybe that was the catalyst for Fitness+, great uptake & they want a bigger slice of the pie.