TurtleBot3 is coming!! It will be launched on next month . But, don’t you want to take TurtleBot3 ASAP??
For now, you can meet TurtleBot3 in Gazebo with ROS. You may clone TurtleBot3 meta package and enjoy it !!!
TurtleBot3 Gazebo tutorial is written in TurtleBot3 website
If you have any question or request, feel free to remain Reply.