Hi!
Twinmotion 2018 trial version is online now, you could download the trial version at https://twinmotion.abvent.com/en/trial-version/
The real-time synchro plugin can be found on this page: https://twinmotion.abvent.com/en/downloads/
Plugin for ARCHICAD is already available, Revit plugin will be out in the following weeks!
The trial version of Twinmotion 2018 is fully functional during 20 days. After the 20 days, it will pass to "demo version", which means you can always try Twinmotion, import your project and do visualizations in Twinmotion, but you won't have options to output or save.
Don't hesitate to share your experience!
Enjoy!