Most likely on the full release version, they already showed early designs of woodies and you can't have a coaster game without em. Nothing confirmed though
The beta comes out tommorow, new things in the beta are: wooden, hybrid and spinning coasters, log flume and river rapids as well as dark ride systems with triggers on the track that you can connect to music, light and visual effects and the activation of animatronics, so you can truly make a working dark ride with scenes (with your own music that you can import) Here is a video of a hybrid: