You can follow the project roadmap here: https://github.com/Activiti/Activiti/wiki/Activiti-7-Roadmap
We update the roadmap every month based on the amount of progress that we made, based on new estimations, new community contributions and feedback from the community.
If you want to see something in the roadmap that is not included yet, get in touch via Gitter so we can discuss how to match the project Roadmap with your requirements.