Apple advertises that their iPhone 6 & iPhone 6 Plus cases will fit the "S" models.
I'm certain what was typed is flipped around.
If you add a filter for the cases on the Apple website for iPhone 6, the new colored iPhone 6s cases show up, including the third party cases that are currently out for the iPhone 6.
Example link to cases on Apple's website with iPhone 6 filter
If you add a filter for cases for the iPhone 6s, only the new colored iPhone 6s cases show up and none of the existing third party cases. Example link to cases on Apple's website with iPhone 6s filter
This leads me to believe that the 6 will fit 6s cases, but the 6s will not fit 6 cases.
This, exactly. The new cases work backward with last year's non-s models, but the old iPhone cases won't work forward with the new s models.Which would support what I'm saying about cases being backwardly compatible, but not forward.