There are a number of Service Expressions that are currently in development. These Expressions can be seen on the e-Framework Community Wiki: https://e-framework.usq.edu.au/users/wiki/DevelopmentExpressions
This Wiki is viewable to the public, however if you wish to become involved in the development process you will have to register for an account. To register please follow the instructions found at: https://e-framework.usq.edu.au/users/wiki/WikiGuidelines
Development Service Expressions