I highly recommend checking out Planet Coaster's YouTube channel
here. There are loads of videos from Gamescom 2016, including short videos highlighting new features, rides and coasters.
Things to note: RMC T-Rex track, Arrow 4D Coaster, Gerstlauer Sky Fly, Gerstlauer Euro-Fighter, Intamin Gyro-Swing, Priority pass (Fasttrack) queues, and what I think is a take on the new style Intamin Wing Coasters, and ABC rides Tourbillon.