Read SPRINTs.md 
Here follow a new EPIC you need to outline on the SPRINTS/TASKS. 
Do not forget to read appropriate parts of the project to see what kind of tasks you need to edit/delete or create to forfill the goals of the sprint. Do not shy to create new projects to concentrate library or new webservice or plugin, but check the src/ for projects to make sure there is no already one that could do it.
Do not shy to edit existing tasks - if they needs to be adjusted
Do not shy to delete of existing task - if they do not make sense anymore for the new EPIC.
But most importantly create - detailed tasks to forfill the EPIC goals.