I cannot give an estimate for this at the moment. The integration needed some updates, since it used functionality that is no longer available in ucs 5.0. Plus the python code needed to be updated for python 3. From the ucs side some updates still need to be done for multilingual app dialogues, but I heard that is currently being worked on.
A preview version is already available in the test appcenter however. Feedback is appreciated, but can of course not be recommended for production environments.