With the latest updates, RCI limited the kind of device the app supports and your tablet is likely not on the list. The update for your phone is available in the Pay/App store or look in the settings of your phone.
An image/video search of any of those aft cabins on any Freedom class ship may yield some info.
For the shows and other activities you may expect, set the app to the current sailing for info.
Announced and confirmed, true, but they may stay on for several weeks, so if one looks at a Dec sailing, the entertainment may be the same. The OP has the advantage of a Genie who may provide an early glimpse at the specifics.
You can look at the current sailing (though it might be better to wait for a US sailing) in the app for info and assume most of it will be about the same on your sailing.