ALL our sceneries are compatible with P3D V3.
NONE of our sceneries includes Speed Trees: you cannot expect that a scenery made 7-8 years ago would include a feature which has been added to the sim 4 DAYS AGO.
It's possible we might use them in future sceneries, after we'll verify how much bigger their memory and fps impact will be, and after we'll decided if we could afford to remove other things to make space for the animated trees.
Some of our sceneries already have animated trees, for the example the Hawaii airports.
You can place Speed Trees in any scenery, using the Sim Director.