In the latest beta of Google Messages A number of references have been found to new functions that the developers are allegedly working on. Among these, as reported by “9to5Google”, the most interesting one concerns the possibility of separating personal conversations from business ones or the one that will allow users to take advantage of quick replies for incoming messages.
In this regard, what surprised the developers is the guaranteed relevance with respect to the content of the message received. For example, if a message is recognized as important, the system will prompt the user to mark it with a star so as to find it more easily later.
In the end, it would appear that the hints will be triggered by common things like dates and phone numbers that users may want to save for later use.