While Xperia XZ3 owners can still use the live wallpapers from a particular Xperia Theme, it won’t support all of the local assets and animations that the theme entails. The move does not appear to be related to Android Pie either, as Sony says that devices that are upgraded to Android Pie will still support Xperia Themes.
If Sony isn’t supporting Xperia Themes on the Xperia XZ3 then it’s likely it won’t appear in newer handsets either. Will you miss Xperia Themes if they eventually disappear? Let us know in the comments below.