I am taking a look at all of my apps and watch faces in the Gallery and see that a handful of them are available for download for the Sense 2 and Versa 4, while others are not. They all use the same base code, so I can only assume that there is a certification process happening?
Also, I see that the latest SDK will not let you target the two newest offerings. IF I use GAM to publish an update to a watch face that is currently available for the S2 and V4, if it is not targeted in the SDK, will it remove it availability for those devices?
I published one of my faces that was approved for the new hardware. Two days later I started having people email me telling me that the face WAS available and now it ISN'T.
If you have a watch face or app that has been approved for S2/V4, I would advise against updating until Fitbit provides them as a target in the SDK.